Thread: 3" downpipe pro's/cons worth it?

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2009-05-12 01:34:41

#31

STRATTON

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Originally Posted by LOUROK

So would you agree that I should upgrade my downpipe from a 2.5 to a 3 inch? I just don'e want to spend the money and get little to no results. I know its not going to be a huge difference but with s4 and a small turbo that creates alot of back presure it makes sense to go bigger.

do to lourok. you wont regret it. you will deff get noticable gains.

it does hang lower then the cross member but its no problem. ive tapped mine a few times going in drive ways or entrances to parking lots but its not bad at all.

stratton.

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if ruled the world and everything in it, skys the limit id push the q 4 5 infinit....

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2009-05-12 01:42:29

#32

LOUROK

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Join Date: 2007-12-11
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Originally Posted by Will

Louie, do it for sure. You will notice a difference I promise. Dont get a cheap pipe though, my VRS has scraped before but not too bad. I love what Ben did, I hate that tiny o2 housing too. I am just waiting until I can weld my wastegate flapper shut and run an external so I dont have to worry about recirculating the WG dump.

But even if you do just get a 3" that bolts to the o2 housing, you will notice a nice difference, let those S4s breathe!

Originally Posted by STRATTON

Thanks for the info gentlemen. Those were the answers I was looking for.

At first I really didn't think it matter because I was running a small turbo, but then reading about how much a back pressure a small turbo can produce and then having S4's adds more bc. But if you guys say it made an improvement the I am all for it.

My main concern was scraping the bottom since my car use to hit the cross member a bit, but I've raise my car since then and it had not happenend.

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1. 95 200SX DE+T/ARP Rod & Head bolts/Calum ECU/tein ss/UR crank & G-spec wp pulley/jwt clutch,pp,flywheel/S4's/NISMO LSD/stromung 3" exhaust/
2. 2010 Subaru Forester XT- 19psi: 301whp/294tq
3. 2001 Nissan Sentra SE (5 speed)

Originally Posted by Kyle

Louie's car is in a class of its own.

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