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Titans need backpressure my A##

14678 Views 221 Replies 33 Participants Last post by  DRTYAZN
Here is a video from a member on CT. He was running 14.0X forever with 07+ exhaust with 2 spintec mufflers. Now he's running just straight pipe after the headers with 2 14" magnaflows and ran a 13.7. He has NO X pipe or Y pipe on his truck. We argue on here about the X or the Y being better and now we have a member running this....LOL

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I see some of my friends there! haha. I saw him run that and I also looked under his truck and yeah he has 2 round 14"s under there, no merge pipe. He also has tt and diy ram air.
he's a 07' that might work for 07+ but do that to a 04-06 and see what happens.. you lose all your torque.
he's a 07' that might work for 07+ but do that to a 04-06 and see what happens.. you lose all your torque.
We will see:) I agree with that, but has anyone ever tried a Y pipe setup and the straight pipe setup back to back, same day at the track? Nobody ever tests **** on here!!:) J/K I will maybe this friday, I'll keep ya'll posted:)
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What works at the track doesn't mean it is suitable for the road.
subscribing to this
Back-pressure is probably the most commonly misused word in the automotive industry.

As long as you reset your ECU a low to no back-pressure exhaust will do great, hands down.

he's a 07' that might work for 07+ but do that to a 04-06 and see what happens.. you lose all your torque.
No you wont, the power curve is just going to move as with any engine modification it will modify your power curve.
What works at the track doesn't mean it is suitable for the road.
UMMMMMMMMMMM.......................O.K.?? How is it not suitable for the rd?
Back-pressure is probably the most commonly misused word in the automotive industry.

As long as you reset your ECU a low to no back-pressure exhaust will do great, hands down.



No you wont, the power curve is just going to move as with any engine modification it will modify your power curve.
Exactly^^^^ If your tuned for it, it will outperform all others! That's why people run straight headers or cutouts right behind the headers:) I guess I'll have to prove all these guys wrong again. LOL They also told me a cutout wouldn't give me gains. I gained .1 every single run with it. I'll do it soon.
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I don't believe you lose torque, but you will move it higher in the rev range so you'll lose your off the line towing torque. I've experienced this myself (not with the Titan) and too little back pressure is noticable if you tow.
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UMMMMMMMMMMM.......................O.K.?? How is it not suitable for the rd?

Exactly^^^^ If your tuned for it, it will outperform all others! That's why people run straight headers or cutouts right behind the headers:) I guess I'll have to prove all these guys wrong again. LOL They also told me a cutout wouldn't give me gains. I gained .1 every single run with it. I'll do it soon.
If your going to use it as a truck to tow and haul, that setup is not the most ideal. The title of the thread may only apply to a very fringe group of Titan owners. Plus I wouldn't conclude something as absolute after a single trial from one truck.

All I'm saying is don't be so quick to jump to conclusions.
well i think what DS is doing is being productive instead of being negative why dont we all encourage him because knowledge is power! good research and find now back it up and prove all the non beleivers wrong...im with yah brotherrr!
How is it not suitable for the rd?
:confused:My guess, 'cause it would be a loud somebish.. Something between a 4 banshees and 8 Honda engines running straight pipes blasting into vtec.

L
id love to run 3" exhaust on my truck but i do some towing and id like for the truck to be able to use the grunt that it has to move whatever it is im towing behind it.

The part i like about a 3" exhaust is we can get rid of some of the CIS that most of us have.
I agree that if you tow/haul a lot it's not the best idea. As far as being loud, no way will it be as loud as my current single bullet set up. LOL

PS: I'm getting (2) 2.25" Borla XS mufflers this week:) I won't even tell you from who and how much, ya'll would really hate me then:) I'll PM you the results 08crew. If it helps improve my ET in the 1/4 mile I don't want anyone knowing except for the guys that care about 1/4 mile times. I'll get flamed for posting results of an improved track exhaust setup by all the haters!!
let me know what happens with the borlas too. Theres a member on here that i could pick one up from thats local :redblob" unless you bought it from him...
he's a 07' that might work for 07+ but do that to a 04-06 and see what happens.. you lose all your torque.
I know i have a X-Pipe, but it is a 04: Poor Man's Nismo Exhaust is DONE! - MightyTitans.com
I want to know as well... this could definitely alter my fuel tank relocation plans... If an X is uneccessary, then I will just run dual sides with single chambers... ;)
Nope, mike I still have mine... Nobody will buy this damn thing haha
Any backpressure isn't good for an engine. But remember that an exhaust setup is only as good as the other modifications before it. The intake, throttle body, intake manifold, heads and cams all dictate where the power will be made. I thought about doing a 3" true-dual setup on the Titan. But without any other options for an intake manifold/throttle-body the VK56DE is strictly a low-end/mid-range motor. It's not made for high-end performance where a true-dual or any extreme flow system would shine. I also have speculations that the VK56DEK (07+ up motor) might have more then just IVTC in comparison to the earlier VK. Why stick an entirely different cam control system and intake manifold on a VK without opening up the head up a bit? :) I'll be finding that out soon enough.

So for the VK56DE, I think a 2.25" true-dual (ie. NISMO) would be an ideal setup to retain most of the low-end/mid-range but also gains some ponies in the higher end.
Or a 2.25 into 3" y-pipe. I used hurt feelings down low/midrange =)(including some Nismo owners)
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