downpipe question (Full Version)

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downpipe question

  

evoblasian -> downpipe question (3/4/2008 10:38:53 AM)

hey guys, i have an 06 evo IX, i have a greddy 3 inch catback atm, looking into downpipes right now, jus curious i noticed alot of people have a 2.5 downpipe goin into a 3 inch catback... is that a better setup than the 3 inch downpipe to the 3 inch catback? i dont plan to go big turbo anytime soon.. but it is planned on in the future. your input would be greatly appreciated

  
Rob -> RE: downpipe question (3/4/2008 12:31:30 PM)

The bigger, the better. Go with a true full 3 inch downpipe.

Evo2nv -> RE: downpipe question (3/4/2008 1:15:01 PM)

Yes get 3in most def. But just make sure you get a quailty one and don't be afaird to spend some money. Alot of cheaper ones rub and hit the underside of the car and gets annoying. I went with the DC sport 2-1 downpipe. its removes the cat section too and comes with a bung welded in for a wide band o2 sensor. just remeber to install ur cel fix in the rear o2 sensor location so u don't throw a cel.

evoblasian -> RE: downpipe question (3/4/2008 8:22:39 PM)

ok thanks, well what downpipes are the best? "best bang for the buck"

Rob -> RE: downpipe question (3/4/2008 8:27:11 PM)

Best bang for the buck...Megan. 

EMonz57 -> RE: downpipe question (3/4/2008 8:51:06 PM)

I dont think megan has one that fits the IX do they?  last I knew it only fit 'Most' VIIIs.   ACD and 6spd trannys are the culpret

XTREME -> RE: downpipe question (3/5/2008 6:57:28 AM)

To a certain point the 2.5 inch downpipe will produce more power on the low end and it provides more clearance for your exhaust system.  However, I would just get the 3 inch downpipe so you don't have to go back and purchase it later if you decide to you want monster power like Emonz or myself.

Rob -> RE: downpipe question (3/5/2008 8:46:35 AM)

How will a 2.5 inch downpipe make more low end when backpressure is not a factor?

XTREME -> RE: downpipe question (3/5/2008 12:24:38 PM)

quote:


How will a 2.5 inch downpipe make more low end when backpressure is not a factor?


It does it by maintaining the ideal exhaust gas velocity when the engine is running in the lower RPMs. This provides for slightly more torque off the line up to around 2300 rpm's.

MR05Evo -> RE: downpipe question (3/5/2008 6:25:26 PM)

What do you guys think of the QTP cut-out downpipe? 
The downpipe I have now is right up against the transfer case.

  

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