You're such a "real" guy, I love it. No pretense or ego. "Idk how to start a video, sorry." It's all good brother.

I love your camp fire style talk about manafolds.good video

I like all your videos. Thank you for making them.

Great to have guys like you in the diesel world, I learn something new every time I watch your videos! Love getting into the details 👍🏻

Absolutely love this channel! Very informative, no B.S, these guys know their Stuff!

The thing I like (love) about you guys is the no nonsense (bs) honesty. It's refreshing.

Keep up the great work Todd. I can't wait to get some of your information first hand.

Todd , I just Subscribed. Before watching your channel I had no clue why it was so important to choose the right type of exhaust manifolds for turbos . You made it so interesting and informative and explained it in such great detail . So Thank you for making and preparing this video.

Always look forward to the Power Driven videos. Even though exhaust manifolds are not always directly related to more power in the overall recipe, it's a critical upgrade once a certain power level is achieved. Even for the seasoned diesel enthusiast, this video is a great refresher as to why we spend our hard earned money on such upgrades.

These guys are the absolute most useful guys for the diesel industry awesome!

Fantastic video...! I really appreciate the simple explanations and real opinions. Its hard to find video's with quality like this.

Really great video! Also, phenomenal to see the divider in the steedspeed manifold sealing up against the wastegate valve. We've fabricated many manifolds (4g63) with a single but divided path to the wastegate, and saw a significant loss in response and boost threshold with even a small path for cross talk without the full divider. Good stuff

Great video (as always). Thank you for the lesson on these manifolds. A much better understanding of the types and their purpose!!

Every time I watch these Videos I end up spending money

Great video, think I have watched it at least 3 times, lots of good info and insights, thanks PDD !!!!

These guys are awesome. When they say call and they will help you out they mean it. I called to ask about what to look for in buying a used truck and the guy I talked to was super helpful and very friendly. I'm very glad I called because I was looking at a different style truck and they gave me some great information. I have since purchased a truck and can't wait to start adding some PDD components. Once again thanks guys for all your help and advice. Hopefully someday we will be able to make the trip out there to see your place in person. Curious do you all have anything planned for the 68rfe?

That’s a helpful video ! Nice explain. Thanks guys 👍

Great video as always thanks for putting out all the good info!

The owner/founder of Steedspeed lives in my Province. I have heard nothing but amazing things from local guys!

Always great videos. Thank you.

Thanks for all the information been watching your turbo school videos agian

Thank you for the in-depth explanation.

Good video I’ve been looking to upgrade my truck lots of good info

Great and informative video as always , thanks...

thanks for the good info, it was helpful as I am a novice at diesel tech.

Great job! Keep'm coming.

Twin scroll turbo exhaust manifold and turbo inlet also stop pressure starvation. With each exhaust valve opens it's creates pressure pulses and cycles of higher and lower air pressure when the valve closes that pressure pulse can go backwards. When you get up to higher rpms your getting more pressure pulses and higher chances of that pressure wanting to go backwards. With the twin scroll it eliminates this

Thanks guys for the info!

Cool info. thanks Todd!

Great vid much needed!

Great reference material, I’m looking to swap to a 2nd gen to make room for the ac box in a obs Chevy

Great explanation.

I am a disabled vet and love your videos. I have a 2006 5.9 (my first dodge) better than my old GMC. Keep up the good work. When I get out to Utah, I look you boys up. God bless

Great explanations!!!

Great video! Thank you

Learned something! Thanks

They are the best in the 12v business

Great video

Wow, I learned a lot.. Thanks Todd. Any update on a new racing motor?

Thanks for sharing.

Hi, I have a 460whp stock fueled 110k mile 03 6 speed with a Smarty, Raptor lift pump, 3250DD clutch and a s366 that I removed to pass emissions. Now that I've moved to a place that doesn't test do you think I would see a noticeable difference in spool up by upgrading the exhaust manifold when I go to re-install it in addition a turbine blanket or do you think I should continue to save my money for other stuff like fueling mods, custom tuning or stock/s400 compounds? Thanks

Thanks for your videos. I am just learning about the b series. You say broken ears know the head? I dont see any Ears on the head. Now cast iron exhaust manifolds can break ears. That 3 piece manifold cam out in the 50,s on 855 cummins 14 liter engine. Never seen on of those break ears. The head studs are a loose fit in the holes on the manifold, so they can move longutudily!

The industrial manifolds are what you use for Fummins swaps as well 😁😎

Made me laugh near the end, "all my trucks half manifolds" Haha Great informative KZfaq video thanks.

Will your Agressor 62 turbo fit and clear on the 3 piece PDD manifold you show at the beginning of this video?

Good video

Is it ever done, a smaller T3 manifold with an adapter into a T4 turbo to help increase exhaust velocity. Ever since I’ve upgraded bd 3 piece and S362, Super slow spool up. I think I’ll be giving you a call Todd to get this figured out.

Do the 12 valve manifolds brake off ears even in normal every day uses and light towing

This video got me thinking about pyrometer probes. On the factory divided manifold, where do you recommend Drilling and tapping? Since it's a divided manifold, aren't you just monitoring three of the cylinders exhaust temperatures by just having one side or the other?

Hi would a divided manifold still work normally if leave the stock turbo(undivided)

Can you make a video on he351 mods,. Different exhaust housing, compressors upgrades.. etc thank you

I have a single 76mm turbo, and it’s very slow spoiling, what would the difference be in spool up open vs twin manifold? In RPMs

You guys are the shit! Thank you

Any thoughts on the stainless diesel manifold? It’s made with moon metal? Supposed to flow well and retain heat

A lot of people do 2nd swap because of the engine sound. 2nd gen sounds bad ass

Just an fyi for anyone interested, my 05 came with an open manifold, my early 04 had a divided manifold. I don't know if they chose to open it when they introduced the he351 in 04.5. But my 04 definitely had a divided manny with an open he341.

Can you please make a video about the diverter valve?

I take it by diverter valves you mean like a quick spool valve. Splitting the scrolls in a turbo. Have you had much success with them? We use them in the merc diesel tuning scene and have had 800-1000 rpm quicker spool times. And less restriction than a true twin scroll manifold

have yall done the dyno runs to see how much the divided combo set up speeds up the spool?

Like this guys videos...

Good common sense info... thanks

just my 2 cent thoughts. please correct me if I'm wrong. ok. The 2nd gen swap on 3rd gen is a big plus in my book. equal runner lengths throughout the firing ordet should balance the "pulse". that balance should help pull heat away from the problematic back three cyliders. in theory should create a smoother exhaust flow witch possibly could help with spool up. to me it's not necessarily a HP thing but an efficiency / support thing. plus on compounds things just fit better with less piping. I've seen multiple mild tune towing trucks die due to heat in 4 and 5 on 3rd gen. never seen that in 2nd gen truck. So a 2nd gen swap just makes sense to me. thanks todd

I wonder will porting the three piece manifold would be beter for bigger turbos?

Would a twin SCROLL manifold to a open housing turbo manifold be safer then vise versa?

Is it worth changing manifold on a 2nd gen 24v? Do they suffer like 12v 2nd gens? Thanks

I have a 2001 Dodge Ram 2500 with 5.9L diesel and want to upgrade to about 500hp what turbo and manifold do you recommend?

A performance part... in as much as : "To finish first, first you have to finish"

You mentioned a diverted valve, any news on that yet? Has it been tested yet?

Why not equal length like a header on a gas motor could there be something found there

I like how they have classified their videos as commercials so when I get hit with one its worth watching the commercial

ok. my thought on 3rd gen to 2nd gen ex man swap is not neccasarily performance but it is at the same time.... equal runner length equally diveded should give a more iniform exhaust pressure, more equal ex temps and supply a more even "pulse" to the turbo. while hp numbers may not go up...efficiently (spool) should and really help with 3rd gen problems of killing #4 & 5 pistons. would love your feedback

Will a 12 valve exhaust manifold fit a 24 valve?

Have First second gen p/pumped (bone stock) shortly after shutdown there is a "cooling pop"sound numerous times equally spaced of approximately every 3m or thereabouts, over what I'm sure is until cool enough (I've never hung around the complete cycle to time it ceases) 1 is that the manifold receding back to cooled "sizing" and is it something of concern anyone? Thanks in advance.

i going to probably buy a manifold and i appreciate the information . I just want to use my truck to tow with thanks

If you are pulling a camper do you need exhaust manifold?

and another thought. how does going from t3 to t4 effect spool?? t4 you gain volume but loose velocity. and in a compound set up with 362/363 with 475/480.

Nice !!

Does the Steed Speed 3rd gen manifold split the cylinders for a twin scroll/dual volute?

Hi there. Have you ever tested twin-scroll vs. single-scroll side by side?

So what would happen if you had a divided manifold feeding a open turbo ?

On my 03 Dodge Ram. The manifold had a diviner and the turbo didn’t . It’s a stock manifold and it was a stock he341. I now have a holset cheetah turbo base off a he351 and it also didn’t have a divider in the exhaust housing.

How about race application header like manifold? Do you feel they take away from or too prone to cracking?

Why only log style manifolds? Why not a longer runner?

Does it change the sound

Is it okay to mate a 2nd gen pulse manifold with dual volute channel to a turbo that only has single volute?

Whats your opinion on the BD stainless manifold?

Great and very informative as always #mechanicalmafia #dinosaurpower #racetruck2.0

Great video , on a stock 3th. gen with a tuner will after market exhaust lower egt ?

Good video thank you I have a 2006 Dodge Ram 3500 single wheel Cummins stock Turbo smarty jr. 5 inch exhaust cold air intake turbo Rings been moved and aftermarket elbow intake I was wanting to put an exhaust manifold on my truck just for maybe making the et's a little cooler should I put one on what one would you recommend or should I just leave it alone and I have a Boost fooler on it and the transmission is stock automatic

Would a cracked manifold decrease the amount of boost?

hey todd in your opinion would it be worth self porting/polishing a stock manifold and where would the best place be to tap for egt sending unit 5.9 24v

Rebuilding a stock 5.9 common rail due to having cracked rings. Would an after market exhaust manifold help stop that from happening again? I'm not looking for power just reliability. Thank you for the videos.

Dont you guys do any 3rd gen stuff?

How can you flow enough air thru those little manifold outlets to make that big power? Obviously you can, but it doesn't make sense to my small brain lol. That would strangle a gas engine. Love the channel, I'm trying to do a 12v swap on my blown up ( shocking I know lol )08 F250 6.4 truck Good info here 👍

a long inline ext manifold that breaks a lot. sounds like my old 225 slant 6

Are there any manifolds that provide performance increases on a 24 valve? Any that you'd recommend?

Watching this video was exhausting...

Finding the right flow for a video can be hard.

Why would you not make a custom sch10 tubular manifold? Instead of a cast

Hi, What kind of material is the best option for bilt an exaust manifold? Inox, aluminium or cast iron