Catted vs Catless Downpipes | Which Should You Choose For Your STI?

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Scoobyfreak86

Scoobyfreak86

2 жыл бұрын

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Пікірлер: 133
@ctrlaltelimin8163
@ctrlaltelimin8163 2 жыл бұрын
Your videos are just solidifying me on getting an sti. I have a mk7 golf, and I drove an sti and fell in love. I love the vids man🙏🏽
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
Thanks for the support!
@nategarcia1437
@nategarcia1437 2 жыл бұрын
On my 16 STI i went with the invidia catless dp alongside a 38 mm external wastegate to eliminate any boost creep. obviously pro tuned and other supporting mods but the rasp of the catless dp sounds amazing to me.
@veasnayem598
@veasnayem598 2 жыл бұрын
For the exhaust set up on my 19 STI, I'm running the Tomei catback, Tomei ELH and the Invidia Catless DP and yes, I've seen those stock cats 15+ sti's being sold for a pretty pretty penny. Love the vids bro.
@enriquemoraj2423
@enriquemoraj2423 11 ай бұрын
So have you a catted DP without EWG? is it dangerous for your engine o it isn't?
@davidnelson1905
@davidnelson1905 2 жыл бұрын
Thanks for the lesson because I was just wondering the same thing because I have a 2014 WRX Impreza with a EJ 2.5 so that's alot of help
@newguynasti2008
@newguynasti2008 2 жыл бұрын
Another great video. Been looking at that grimmspeed downpipe or the invidia. Definitely going catted after watching this.
@ErinBHBurke
@ErinBHBurke 2 жыл бұрын
Great video, thank you!
@djsthemetereman
@djsthemetereman Жыл бұрын
Yessir I'm in Jersey as well gonna be installing a catted downpipe paired with a cat- back valvetronic non resonated exhaust plus Jb4 tune on my 21 Acura TLX TYPE-S, so if I can get it to sound close to these Subarus I'm on the right track
@RomanEcheveria
@RomanEcheveria 2 жыл бұрын
Got a catless with 44mm ewg, love tge sound of it 😍
@trnql_noir
@trnql_noir 2 жыл бұрын
Thanks for the great video. Definitely want to go with the Grimspeed Limited DP
@BLLx91
@BLLx91 28 күн бұрын
I thought my car was Japanese, had no idea it had Cadillac parts. 😮‍💨😮‍💨😮‍💨 so much for JDM.
@Mrhiddendeath
@Mrhiddendeath 2 жыл бұрын
Went with the Invidia catted a little while back because it was on sale and my old Perrin downpipe developed a large crack. Definitely would of got the Grimmspeed for the Gesi and Wideband bung if I were to do it again
@sorongooooooo
@sorongooooooo Жыл бұрын
Hi man! amazing video!!! I have an s3 8v and I want it to sound louder without having a drone. I was thinking of putting an IE catted downpipe on it, but the smell of gasoline bothers me, what setup do you recommend? thanks and regards !!!
@1VIPWRX
@1VIPWRX 2 жыл бұрын
I believe if the car is tuned correctly , catted or not . The car will do what it should do .
@johansgarage7500
@johansgarage7500 2 жыл бұрын
Thanks for that explanation definitely going catted lol plus don’t want to be too obnoxious
@calvinjames8291
@calvinjames8291 3 ай бұрын
Apologies for the long message in advance.... I'm new to the STI platform and have a question in regards to the up & downpipe. I have several big HP GM LS & LT vehicles ranging from 630whp to 1,017whp. So in no way, shape or form am I trying to build this car, but want it to run the way it should once the real tuning starts. I recently purchased this STI to replace my Focus ST, which was my daily. Immediately, the STI became the far more fun to drive vehicle than the ST ever was, and can corner nearly as stable as my CTS-V3. Long story short, the STI ran good with the patches the used car dealership done to sell the car or the previous owner stripped it before selling it because there are signs where an AOS would've been located, or possibly a DP by looking at the broken zip ties. The car currently has the SRS non muffler axle-back "and sounds great", Cobb Carbon Fiber Intake, and an OTS map. I recently replaced the turbo inlet due to half of it being mounted onto the turbo with the bottom nearly halfway in the turbo itself, so I replaced it as well with a Perrin. Car ran fine for a few days, but the PCV valve that I thought I cleaned up pretty well stuck again. So, it's torn down again at the moment to replace with a new OEM piece. While I have a lot of the shielding off to put new clamps on the turbo drain, I want to know if the DP and UP worth it? More than likely I'm going to go catted since I don't want it excessively louder than what it is, but wanting to cure the well known problems that exists, along with the weight, and bulkiness in itself. Is it worth the money, what's the typical whp gains, and overall driveability/reliability of the car afterwards? As far as the DownPipes, are there any benefits with the divorced DP and the standard DP? At the moment I'll be keeping some type of recirculating BOV. May upgrade once tuning, but don't plan to vent to the atmosphere. Understand that the FP may have to get upgraded, but hopefully you can tell me yes or no. But the car will not see E85, and only pump 93.... Will the Injectors be enough for those few boltons? 2019 STI Base where I've heard that the 2019 STI will throw 02 sensors regardless. Any info on that? & thank you in advance for any info provided.❤
@butterflyeffect2411
@butterflyeffect2411 2 жыл бұрын
finally decided to break my hi flow cat couldn't resist the sweeet catless smell anymore
@KrGsMrNKusinagi0
@KrGsMrNKusinagi0 8 ай бұрын
always do a rear cat delete causes 0 issues.. I went catless for years on the front but i bought the HKS catalyzer for my fa20dit throws 0 codes with no tune 15000 miles in
@wgc383
@wgc383 3 ай бұрын
I have a 2021 sti, stock, would you recommend just doing an accessport, tune and catted downpipe as 1st mods?? I hear the CAI dont add much over factory setup.
@RG-ok4dy
@RG-ok4dy Жыл бұрын
Can you only do divorced wastegate on downpipes for the STI?
@aakburns
@aakburns Жыл бұрын
I have 2011 450hp sti. It's got a catless 3" downpipe. If I switch to catted, will I have an issues?
@jairoaguilar3838
@jairoaguilar3838 2 жыл бұрын
Definitely going catted mostly because I want to keep emissions down while making power 👍🏽
@tedwong6790
@tedwong6790 2 жыл бұрын
Went with the high flow cat from COBB and my car still stink love it
@spookgook4903
@spookgook4903 2 жыл бұрын
Keep emissions down said no Subie driver ever lolol I have a Cobb catted HF Stinks. Pops n bangs and small flames/sparks every once in a while.
@haydenn_yeung
@haydenn_yeung 2 жыл бұрын
cadillac converter lol! jk, love the vids bro!!
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
Just me slurring over my words per usual haha.
@rithykevin635
@rithykevin635 Жыл бұрын
Can I use. 200cell catted downpipe for my is200t (stock ecu) Want it for the sound and better flow.
@chucknorris9511
@chucknorris9511 Жыл бұрын
I’ve got a brand new Tomei catless down pipe ready to be installed. I will run GS up pipe with EWG and go open source tune.
@tranwrx
@tranwrx 7 ай бұрын
Questions? Whats yo offset? How u manage clear sti brake systems? Trying limited spacer.
@Scoobyfreak86
@Scoobyfreak86 7 ай бұрын
These were +35. I ran a rotora bbk which was slimmer than the stock STI brembos. Had more clearance overall even though they were larger brakes.
@MrMegatron85
@MrMegatron85 2 ай бұрын
Haha thank you for talking some sense into me
@odinisgod4577
@odinisgod4577 2 жыл бұрын
bto i have a stock j-pipe and i have spikes of 24.8psi
@allyoucan69
@allyoucan69 2 жыл бұрын
went catless for another 10whp and i personally think it sounds better catless. Not worried about inspections in texas either
@Handsofgod66
@Handsofgod66 2 жыл бұрын
Was the smell really bad?
@allyoucan69
@allyoucan69 2 жыл бұрын
@@Handsofgod66 not really. Some people have extremely sensitive noses and hate the smell of catless. Didn’t bother me one bit
@coreypatterson1386
@coreypatterson1386 Жыл бұрын
@@allyoucan69 I have a catless GTR...it is fun...sounds good, buy I get tired of getting headaches from time to time from Carbon monoxide....my install was done right (I triple checked it)
@allyoucan69
@allyoucan69 Жыл бұрын
@@coreypatterson1386 you would be one of those said people bro😂. It’s not a bad thing, it’s good that you’re sensitive to it
@markc6684
@markc6684 2 жыл бұрын
I just traded my 20’ WRX for an STI in lapis blue 🤤. Can’t wait to start building. Don’t you need fuel upgrades on the STI to run CAI and down pipe?
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
If running both, yes.
@Aprazed
@Aprazed 2 жыл бұрын
What are you running for fuel upgrades I’m running perrin intake and bypass valve which are both no tune required if I go Perrin divorced catted downpipe would I be fine without any fuel upgrades for a bit until I can afford fuel upgrades with a accessport since it will be catted divorced
@marksarcevich9824
@marksarcevich9824 2 жыл бұрын
I have a 2021 WRX ... What is a good catted system that is reasonably priced , durable will sound better ...?? Thanks mark
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
Cobb
@MultiMotoCrossKing
@MultiMotoCrossKing 9 ай бұрын
where did you get your headlights? i’m hey look so good
@Scoobyfreak86
@Scoobyfreak86 9 ай бұрын
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@subie-ja8083
@subie-ja8083 2 жыл бұрын
I noticed some down pipes have the cat on the top and others like the nice name brand ones have them on the end. What’s the difference?
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
Just different placement for the best flow for the downpipe. Every company uses a different car, so it’s positioned in the spot where it is most effective in both emissions and flow.
@recess7853
@recess7853 2 жыл бұрын
How much louder it is with a downpipe compare to a stock ? I have a awe touring exhaust with Cobb intake I don’t want sti sound to loud.
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
Hard to tell since I changed the headers as well when I put my dp on. But either way, it’ll increase the volume since it’s more free flowing and larger diameter.
@MD-pz3cn
@MD-pz3cn 2 жыл бұрын
A decent amount louder.
@michaelscott4465
@michaelscott4465 2 жыл бұрын
my only worry with going catless is exhaust drone. if i have a catback with a muffler and resonator would a catless downpipe make it drone?
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
Depends on the catback, but a catless down pipe will definitely introduce some unwanted resonance.
@valneissignorjunior3852
@valneissignorjunior3852 2 жыл бұрын
Great video man. Thanks for sharing your knowledge. I have a catless downpipe (2016 WRX), but the smelling is terrible. A catted downpipe would be worthy to improve it? Or, alternatively, use the oem intermediate pipe and just remove the first cat would be a good solution? Thanks a lot
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
Adding a cat would definitely clear up the smell!
@Bosshog_g80
@Bosshog_g80 Жыл бұрын
im tuning my g80 soon i have GESI catted active autowerks down pipes my main concern was loosing potential hp gains because of it. What do you think the difference in hp will be more or less between catted and catless after the tune? im hearing different numbers. paid almost 4k for these out the door now im having second thoughts thanks
@Scoobyfreak86
@Scoobyfreak86 Жыл бұрын
Very minimal between the two. Gesi cats flow extremely well. The only benefit you’ll get from catless is flames. Otherwise, barely any power gains between both these days.
@Bosshog_g80
@Bosshog_g80 Жыл бұрын
@@Scoobyfreak86 Thank you! dyno and tune went really good. did round 820hp with catted downpipes.
@kris_blurry
@kris_blurry 2 ай бұрын
Okay I have a question! So I just upgraded from stock to the Cobb stage1+ kit (stock downpipe) and about a week after I now have engine codes for the front and rear 02 sensors. Is that something normal that you had to deal with? Is there a better replacement for the 02 sensors?
@Scoobyfreak86
@Scoobyfreak86 2 ай бұрын
Did you install the intake with it? You shouldn’t be having 02 issues.
@kris_blurry
@kris_blurry 2 ай бұрын
@@Scoobyfreak86 yes the intake and access port with the stage1+ 93 octane boost select tune
@Scoobyfreak86
@Scoobyfreak86 2 ай бұрын
@kris_blurry I would clear the codes and see if they come back.
@theodensa2601
@theodensa2601 Жыл бұрын
I bought a 2015 STi last month keep getting p0420 code even after I replaced the o2 sensor only at 92k miles. what would my best option be? I currently use an accessport so I couldn't get the CEL tuned out unless I unmarry the AP3 and go open source? Am i better off getting an OEM downpipe for $$$ or what aftermarket would be best since im not sure they make them for 2015+ anymore.
@Scoobyfreak86
@Scoobyfreak86 Жыл бұрын
Grimmspeed or Cobb catted DP is the way to go.
@theodensa2601
@theodensa2601 Жыл бұрын
@@Scoobyfreak86 i just bought a 2017 oem downpipe w 25k miles off the original owner. fingers crossed this works before I spend more money!
@gabrielsalgado5762
@gabrielsalgado5762 Жыл бұрын
Did you get a check engine light on when you had the catted jpipe p0420?
@Scoobyfreak86
@Scoobyfreak86 Жыл бұрын
No sir
@thatasiandude1351
@thatasiandude1351 2 жыл бұрын
If it's not a track car just go with hi flow cats and viceversa, earthlings will thank you cop's will leave you and you'll have a peace of mind. I think this is the best way to go 👌🏻
@tb6516
@tb6516 Жыл бұрын
Ya rn for exhaust I’m only running a r400 catback and I’m pretty much stock with just a sf Cobb intake and a Cobb port. I want a downpipe that wouldn’t be a headache and with no worries about boost creep or anything. Any good catted downpipes for the 21 sti? That would sound nice with a r400 catback ?
@tb6516
@tb6516 Жыл бұрын
I Perfer a more low rumble tone. But I also like pop and bangs.
@Scoobyfreak86
@Scoobyfreak86 Жыл бұрын
Grimmspeed or cobb
@tb6516
@tb6516 Жыл бұрын
@@Scoobyfreak86 I’ll look into them. Thx boss 👍🏻
@known3617
@known3617 2 ай бұрын
Catted DP all the way! Far to inconvenient for most people trying to get their car simply inspected in states that require it, if you live in a non inspection required state then lucky you. If you live in California well you should move out asap as having any kind of car is basically illegal and will cause cancer.
@1VIPWRX
@1VIPWRX 2 жыл бұрын
Tri state , hopefully we don’t turn into Cali
@enriquemoraj2423
@enriquemoraj2423 Жыл бұрын
Nice video, so it means that is not recommended to install a catless system in your stock engine?
@Scoobyfreak86
@Scoobyfreak86 Жыл бұрын
No I would not go that route with these motors.
@enriquemoraj2423
@enriquemoraj2423 Жыл бұрын
@@Scoobyfreak86 thanks for answering, very helpful! If I remove the first cat, would I also have boost creep? I had soot problems on my STI and the recommendation was to removed it haha.
@Scoobyfreak86
@Scoobyfreak86 Жыл бұрын
There is only one cat on an STI. You’ll have more carbon build up on the back bumper being catless than with cats.
@carlosdelacruz568
@carlosdelacruz568 Жыл бұрын
I have a 2020 subaru wrx sti. I am considering going with a grimmspeed catted downpipe. How soon after do I need a tune? Is it safe to drive for a couple of days until I can get the tune?
@Scoobyfreak86
@Scoobyfreak86 Жыл бұрын
Right away. Don’t drive with it until you have a map or tune to install.
@kurtfrm8088
@kurtfrm8088 7 ай бұрын
⁠@@Scoobyfreak86what map should you use for a downpipe install?
@bryannava3884
@bryannava3884 2 жыл бұрын
Hi .. i have a question so i f i get the grimmspeed limited catted can i only tuned with my accesport or i need someone to tuned for me ?? Last question wha does it means when it says its divorce downpipe catted ?? Thankz
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
You can run the Cobb OTS maps that are on the accessport. A pro tune/dyno tune will always yield better results though. Divorced means the two openings of the down pipe and separated instead of 1 large inlet. Do a quick search on Google between the two and you’ll see the difference.
@bryannava3884
@bryannava3884 2 жыл бұрын
@@Scoobyfreak86 sweet thankz bro for the help n the answers it really help me i really apriciate 😁👍
@Victor-vq9ks
@Victor-vq9ks 4 ай бұрын
How. Low is the Sti boss? I love the fitment as well
@Scoobyfreak86
@Scoobyfreak86 4 ай бұрын
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@user-uu9ry1vk9p
@user-uu9ry1vk9p 2 жыл бұрын
I love catless
@antoineozaneaux6881
@antoineozaneaux6881 2 жыл бұрын
do you have any STI brakes for sale ? i have a decent 19 series gray WRX .
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
I sold my stock brembos a while ago.
@trillflaco
@trillflaco 2 жыл бұрын
boost creep ! plus arent catless not being made anymore? (haven’t watched the full video btw)
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
They still are being sold, but they are a little harder to come by. And yes, I go over boost creep.
@djqbassic
@djqbassic 2 жыл бұрын
Isn't cobb working on a catted downpipe certified for California?
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
I wouldn't put it passed them. If anyone can do it, Cobb can.
@ViperCoPinkVipers
@ViperCoPinkVipers 2 жыл бұрын
how do you deal with boost creep thinking about catted
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
When stayed catted, you won’t have that issue like you would if you went catless. However, you can go to ewg to eliminate any boost creep issues.
@cu707
@cu707 2 жыл бұрын
I love the e46 m3 but I have never heard a good sounding one from the exhaust….. sounds like a bad rice burner unfortunately
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
I had 9 different exhausts on that car to find the perfect note. It’s an acquired taste, but I was a fan of the rasp.
@boostfeed_
@boostfeed_ Жыл бұрын
Personally I love the smell of a catless car😂
@augustodimacali5245
@augustodimacali5245 2 жыл бұрын
When I put catted DP there will be no issue in emissions in NJ ?
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
As long as you have a cat, a proper tune, and no check engine lights you’ll be fine.
@augustodimacali5245
@augustodimacali5245 2 жыл бұрын
@@Scoobyfreak86 thanks. Very informative video. And I’m using it for daily drive. 😀
@ararson4710
@ararson4710 Жыл бұрын
May I ask what is the name brand of your rims is?
@Scoobyfreak86
@Scoobyfreak86 Жыл бұрын
kzfaq.info/get/bejne/Z9Wcl7iHu7yZqps.html
@veasna2
@veasna2 2 жыл бұрын
So im in philly would going catted pass emissions?
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
I passed in nj with aftermarket cats no problem kzfaq.info/get/bejne/eraig7yq09Cpfn0.html
@hegotscents8823
@hegotscents8823 Жыл бұрын
Which headlights do you have
@Scoobyfreak86
@Scoobyfreak86 Жыл бұрын
kzfaq.info/get/bejne/q-B9m8ugtdjHo3k.html
@seesig5319
@seesig5319 2 жыл бұрын
Your catted DP passed the inspection in Jersey?
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
Yes
@karlpoglitsch1087
@karlpoglitsch1087 2 жыл бұрын
I just went through emissions today in CT with a Delta Motorworks catted DP (one high flow vs two in the OEM DP) and a tune. They do a visual inspection to make sure you have a cat, but not as strict as Mass. I believe most tunes disable a code that will pop if you aren't running an OEM downpipe.
@5speedracer
@5speedracer 2 жыл бұрын
The tuner I use refuses to tune anyone that's catless.
@karlpoglitsch1087
@karlpoglitsch1087 2 жыл бұрын
Because they don't want the EPA sniffing around. Recent crackdown on emissions bypass has the US is quite a frenzy.
@ricardolee461
@ricardolee461 2 жыл бұрын
Why
@clifft7832
@clifft7832 Жыл бұрын
@@ricardolee461 It's a federal crime, which the government has been going after. It's getting tougher to push the rules.
@ricardolee461
@ricardolee461 Жыл бұрын
@@clifft7832 but there is still some tuners where iam out Maryland that still tune that can by pass the federal government issue
@aspect5117
@aspect5117 Жыл бұрын
What is the color? 🤩
@Scoobyfreak86
@Scoobyfreak86 Жыл бұрын
Lapis blue metallic
@burritogaming8733
@burritogaming8733 2 жыл бұрын
Catless=flames
@BobbyB910
@BobbyB910 2 жыл бұрын
If you’re state does safety inspection then keep the cat if not then ditch it
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
I wouldn't go by this logic due to the fact of what I discussed in the video. I am not recommending to stay catted just for emissions purposes.
@BobbyB910
@BobbyB910 2 жыл бұрын
@@Scoobyfreak86 oh no I was just throwing my reasoning out there…I lived in Texas dealt with inspectors failing my car because harnesses not “seat belts” and all other sorts I live in Michigan now and it’s literally no holds I know dudes with 1000hp street beasts with supercharger sitting out and open with open header. My “fun” car has a 62/66 and turns out the passenger fender and that would not fly in Texas around where I lived
@Menace_sti
@Menace_sti 2 жыл бұрын
Damn haha sold mine for 400 wtf 800
@user-uu9ry1vk9p
@user-uu9ry1vk9p 2 жыл бұрын
Where is your m3??
@Scoobyfreak86
@Scoobyfreak86 2 жыл бұрын
Sold it back in 2013
@user-uu9ry1vk9p
@user-uu9ry1vk9p 2 жыл бұрын
@@Scoobyfreak86 😭😭😭😭, I keep my M6 e63 v10 CATLESS😂😂
@enzog1078
@enzog1078 2 жыл бұрын
Love cars but too much of an environmentalist to run a catless
@ruebensalsedo891
@ruebensalsedo891 Жыл бұрын
You can modify your car in California lol
@jdsayler96
@jdsayler96 2 жыл бұрын
First!!
@tedwong6790
@tedwong6790 2 жыл бұрын
Tree hugger..... lol
@M3GAMAN3
@M3GAMAN3 2 жыл бұрын
the smell is terrible lmao
@stanleymonroy1891
@stanleymonroy1891 Жыл бұрын
Invidia catted high flow is it bad ?
@Scoobyfreak86
@Scoobyfreak86 Жыл бұрын
Not bad, just better options out there.
@stanleymonroy1891
@stanleymonroy1891 Жыл бұрын
@@Scoobyfreak86 man I be seeing your videos I just bought a Sti 2012 had a rod knock I’m going w a type ra block it already has thay invidia carted Downpipe and Perrin exhaust I’m trying to make it as reliable as possible being it only has 30K miles and the new block going on is brand new
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