Thats just an awesome sounding engine. I do prefer the 2.25 one, i think its more refined.

2.5 sounds the meanest

I'm glad I'm going with 2.5" for my custom setup. Now that I've heard both side by side, your 2.5" setup sounds very similar to how my coupe sounded with stock exhaust, but with basically the same resonators you have in the rear where my muffler was, just like you have. I'm really excited to see what my sedan sounds like with both resonators and mufflers replaced with the FlowFX resonators/mufflers.

YES!!! Here for this as you know I'm about to get this install in the works! Hopefully they can fit me in next Friday 😁

The speed shop is a good idea! Glad i saw the description

2.5 for the win. Sound lovely

Sound depends mostly on the muffler/resonators. High flow cats, 12" long vibrant bottle resonator(s) and a 5"-9" Vibrant race muffler(s)

2.5 all the way 👍

What a sound 😍😍 no matter what exhaust

Awesome review. Helped with my decision of going with a 2.25". For a daily driver, torque is vital in general (especially during winter) and you'll get the increase in HP anyways. Sound wise, the 2.5" sounds beefier but I don't drive a muscle car and would personally feel like a poser giving off that kind of sound. I am a sucker for blow backs and flames though, so the 2.25" manages that pretty well (:

I got 2.5 on my sentra 2015 6 speed manual, with a magnaflow muffler, sounds clean

Getting a 2.5" Borla Pro XS setup Monday! I might opt for the quieter tone resonators but absolutely love the deep tone. I have a Z1 ecutek full tune with intakes and HFCs

That 2.25 sounds very refined and comfortable sounding with slight aggression but that 2.5 sounds like a small v8 and personally I think this car deserves it, really makes bmw sound like it needs a lesson

Went from stock piping to 2.5 inch on my 08 G35, I highly recommend it. Sounds less trumpety and it’s a deeper sound!

@SpeedCultureStudios This helps a lot more then I thought. I I own a 2015 lifted Scion xB with a 23” length and a inlets are 2.5” cherry bomb glasspack. With a 2.25” TRD sport muffler. It had the perfect sound for daily. Now I get to the point we’re I want a full custom single side exhaust. From UEL header, to 2.5” down pipe with magnaflow high flow cat that’s 2.5”, a 2.5” vibrant ultra quiet resonator, and the rest is 2.5” exhaust pipe. It’s gonna sound deeper and more aggressive sound. Hopefully this will be better and maybe loud in more mature way for daily. 🙌🏼

The 2.25 in my opinion is better than the 2.5. The 2.5 has a little too much resonance making the frequencies clash. The 2.25 is more crisp and audible as opposed to jumbled together. If 2.35 was an option available, I feel like that would hit the sweet spot for me.

can you link the tips u had for your 2.25 setup?

I have a 3 inch isr catback single exit exhaust and it’s sounds very deep but I’m liking the 2.25 inch sound a lot it’s hard to choose becuz they both sound good

Love the channel bro my q50 is stock as hell looking to do some intakes an some tuning what tune would you recommend.

Wow, I'm actually surprised at the difference! 2.5 sounds significantly better!

Hey man like your channel and a couple others for Q50 chat so just commenting. Anyways, thought I'd mention that for some or many owners that don't know that playing around with one's exhaust can play a big part in detuning one's car. A lot of the time people are negatively affecting their car's low end and mid range power output by going to larger diameter exhaust then what the engineers likely placed on the car. What's really important in a exhaust design is how well it aids in scavenging the cylinders and sometimes the thought of freeing up back pressure created by the stock exhausts which was a part of the equation the auto designers use to make the engine perform best for drivability can be adverse. I'll never forget the time i had my 88" Mustang 5.0 in high school. I had lots of friends and some not friends where we always raced our cars and talked shit afterwards if not before. My car was one of the fastest until i added a ford performance off-road H-pipe and black original Flow-Master mufflers. Killed my low end and mid range come to find out but the sound was pure intoxicating. Before the exhaust mods i could pull this guys 5.7 88-90 Vett but the next day after he would drive off from me and his vet was kept stock and another acquaintance had the 5.7 IROC. That's just one scenario and they are all not the same but that experience really opened my eyes. Louder doesnt usually make a car faster but can sure sound like it does. One time, a smarter car professional told me a equation when it comes to exhaust size for optimum performance per engine size and hp output/goals. I can't recall it now but certain smaller displacement motors like 6 cyl and 4 cyl motors don't need or benefit from larger diameter pipes unless really getting into the high 500-600hp and then 800-1000hp. For me, i will always be a function guy over visual appeal and sound. A simple, quick video i stumbled upon discussing exhaust design: kzfaq.info/get/bejne/espkZtWosa6ph2g.html

2.5 without a doubt, looking to do same setup

I'm actually in debate now for this too. I have an axleback on my Q40 stock piping. I do plan to tune it after I get a CAI. In terms of performance, do you think it's worth going custom CB w/ 2.5" piping or leaving it stock exhaust w/ axleback. I would keep the axleback and stock resonators and just change the piping to 2.5"

Do you think 2inch would be to restrictive? Or is 2.25 the happy medium ? Would I lose more torque and hp going 2 inch

STRONGLY prefer the 2.5. Definitely has a deeper tone, which I love

Hey speed culture Is the 2.5 a double wall exhaust tip which would you prefer single Wall or double wall

My scirocco sounds to raspy and has a 2,5inch middle muffler delete, will i be able to fix this with a 3inch middle muffler delete?

i cannot find the 2.25 dual inlet/outlet borla pro xs muffler on amazon. when you talk about the diameter difference is it the pipes as a whole or just the muffler and resonators? I'm rather confused at the moment lol

2.5 sounds better to me I'm just curious if anybody knows if the x-force 2.5 on an XR6 ute is a good choice of exhaust pipes over a mantra ?please help

I have a 1.75" system. Getting a custom cat back non res system done soon. Now looked at cheap systems and they are 2". Then looked at Cobra and Miltek and they are 2.5" for my car. The custom place said they will replace with original size but in stainless. Now I been reading that going bigger will give you a deeper tone but also can create power loss. So I think going from 1.75" to 2.5" is gonna be too much especially on a small car. But comparing the cheap small systems to the 2.5" Cobra, the Cobra sounded nice. So any advice on what I should do coz I want a nice sound but don't want to lose power but also don't want that buzz at higher revs that I seem to hear on cheaper more restricted systems. Thanks

Do you believe this same dual setup can work on the 2024 Frontier? Or would you recommend using an X or H pipe? Thanks 👍

What's good Brutha.. I'm A newbie to Mods. I have a 2006 Fx35 AWD. Just purchased some 3" inch Dynomax Bullets to replace the stock resonators, a 2 5" Upower X-Pipe to replace the stock y pipe as well as some 3" Magnaflow Performance Mufflers for the rear .. What size piping do you suggest I use for those mod pieces?

I was looking for new mufflers for my accord. So if I buy 2.5 inch mufflers and my exhaust size is 2.25 I can being it to a shop and they will fitv

Back with the qx50 questions so , I want to install 2.5 or 3” CAI & I still need to change my cats for test pipes . With that said my catback currently is 2.5 pipe should I bother touching it or doing 3” ? Would definitely value your idea / feedback on this considering the test pipe & CAI and I know I’ll have to get a tune once those are installed ! Thanks

What were your Dyno numbers for the 2.25 and the 2.5? I'm still really thinking of doing the hybrid step up exhaust going from stock to 2.25, to 2.5, to 3" for the last 3'. How long is the exhaust from the stock down pipes to the exhaust tips?

I been debating all day which I should buy and would sound better for my 3.0t. Then this vid pop up. I’ll have to go with the 2.5” just because it sounds more aggressive to me. Can’t wait until I get my muffler and resonator delete then throw on the 2.5” pipes

Is the clips of the 2.5” with test pipes?? Or just the cat back

What size is the stock exhaust

Very nice, on the 3.7 is it better to just go full 3 inch exhaust? I'm currently running the MBRP exhaust at 3 inch diameter. Love the sound and the extra push it gave the car.

Oops, thought i had a 2.25. Lol i did 2.5, BUT different setups produce different results! That x flow i added in the middle really held up the high tone in the higher gears, didnt muffle out like the 2.5 did in yours.

If you don’t mind me asking what is the stock exhaust diameter?

Would you say you gained/lost torque between the 2.25" and 2.5"? I have a POS lancer 1.6l EX and im using a 2.75" straight pipe from manifold all the way through and i've lost a lot of torque.

Both sound good to me either way. It’s all what u perfer in tone and loudness. Usually bigger exhaust will perform best but in this case 2.5 is not gonna 2.25 will be better for this car for power. Having the happy medium size wil give the best for your power. if u like deep mean sound go 2.5. But if u Want louder exhaust go 2.25. I will tell u I have had 2.5 inch exhausts and I have even had some 13/4 inch exhausts. And I can tell u that if the setup is completely the same and same motor other than pipe size the smaller exhaust will be louder!

no way.....are you in simposonville becuase i do pulls down that side road heading towards the qt ALL THE TIME.

I think they both sound great, but the 2.5 has a more refined sound IMO. I have a 2.25 custom set up with Berk HFC's, x pipe, vibrant, and Borla. I get slight rasp from 3-5k, so I thought about upsizing the midpipe to 2.5, then leaving the x-pipe and on back at 2.25. Do you know of any issues with a larger mid pipe compared to the rest of the catback? I would think the 2.5 midpipe would help reduce that rasp, but haven't found good evidence this will be the case.

Borla 400286 Turbo XL Muffler, what’s the difference from this one and one you got? Besides the price difference.

Hey boss, what suggest pipe diameter for a 4 banger. 1.7. I have DNA headers, cold air intake, flow pro max.. 2.5 I believe.. sounds ok. Dont like the rasp.. resonator ?

Hmm maybe I'll go with 2.25; same setup (Borla Pro XS and Flowmaster FX w/Vibrant resonators). Can't wait to see how that sounds. Since the HFC and mid pipe are 2.5 diameter, will it bottleneck? And what do you mean by high pitched sound on 2.25 piping? Like you, I am trying to find a right exhaust tone for my ears.

@speed culture studios i want to do the 2.25 setup, but do you think it is obnoxiously loud compared to the 2.5 or just right for the setup ?

Anyone know a good 2.25 inch y pipe?

I think the only way to really test this accurately is to use a identical exhaust set up like the 2.25in Fast intentions vs the 2.5in with same test pipes/cats. Theres so many variables here that i doubt the piping size is the dominating factor in the difference in sound. Im running isr headers with q300 which is 60mm. Im really considering switching to fast intentions 2.5in set up because the ISR's are 2.5in. ISR lth's with Invidia q300 does sound very nice though if you dont want it to loud, its very tasteful sounding. There is zero rasp or drone but i feel like the location of the x pipe and the mismatch piping diameter is hurting me a little bit on power.

Makes me wonder how my Fx50s would sound with an aftermarket exhaust

Dope video champ, I think my setup is closer to 2.5 👌

what’s up bro, I have a dodge charger, 2008, and i don’t know man I feel like the 2.5’ would sound nice on it. Where did u get it at?✌🏼

Any proof of the 2.25 having more torque or just butt dyno?

The description of the video says 2.25 is better for torque and gains I agree 😄 I tried a greddy evo gt dual with 3' piping. I noticed the loss of torque and the gain in noise inmediatelly

I'm gonna run Megan Y Pipe, ISR Resonated Test Pipes & 4 Wicked Flow resonators thru 2.5 piping with no mufflers....I'm hoping its not too loud.

I have a Tc 2015 should I go for the 2.5 exhaust?

Hi ,if I delete my resonators of my exhaust will decrease my performance, I just want my exhaust to be a little bit louder. I have a invidia Gemini full cat with two resonators and two mufflers

2.5🔥🔥🔥🔥🔥

video starts at 2:00

Hey man how much horsepower do you have?

2.5 sounds aggressive 🔥

What is the stock size?

These r exhaust tips?

U should have Dynoed the 2.5 exhaust with no muffler like u did the 2.25 so we could hear the difference between the 2

What was the setup for the 2.25? I need 😨

4years later, but 2.5 allllllll the way

2.5 setup sounds better. But close to 10 lbs/ft of torque loss is substantial.

Were u shooting flames on the dyno with stock cats?

reminds me of rob dahm in his beginning days

ᴄᴏᴏʟ sᴏᴜɴᴅs #eargasm❤

I do like the 2.25 sound better.

2.25 for the crackles and pops more confined than the 2.5 The 2.5 is more for a wide open Horsepower for the diameter is less restricted

2.25 is a little raspier but you had a completely different set up. The 2.5 has way better mufflers. Good vid though

2.38

I'd like to hear 3.0 inches sound.

2.25.

2.5 is more harmonic and the 2.25 is more raspy. I would say if your car is very mellow i would doca 2.25 and if its a beast of an engine i would do a 2.5 just to balance a little better. And leave resonators on people. Most cars sound like complete crap with them off and make them undrivable

I see all these different comments and I’m just wondering if all y’all heard the same thing I heard.. The 2.5 sounds significantly better and deeper. Y’all are trippin’ 👨🏽‍🦯

2.25 sounds like a BMW e46

I hear a very slight difference

I got 1.75 on my car

Lol I still got 1.75 :$ cant wait for 2.5

And is that q50 kinda mean or what? No idea these cars packed a punch.

2.5 is more manly. DEEPER notes are audible

2.5 sounds way better

2.25” sounds way better in my opinion

In my opinion I think 2.5 sounds better and more aggressive!

The same lol

It won't climb hills without back pressure. I'd go no larger than 1.5". 🤭

2.5 deeper rumble. 2.25 to high pitched and annoying to me imo