Exhaust question

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03-10-2009, 02:03 AM

ctr99ek

0.5 BAR

Thread Starter

Join Date: Apr 2006

Posts: 81

Exhaust question

Hey guys, i have 2.25 in exhaust right now, and i wanted to run a 3 inch dp from my turbo. I was wondering if i would get any power loss if i run a 3 inch exhaust cutout before reaching the 2.25? i know there will be tons of back pressure with the 2.25

03-10-2009, 07:00 AM

malibutwinturbo

1.0 BAR

Join Date: May 2006

Posts: 211

run 5"

03-10-2009, 08:20 PM

clwtwizted

0.5 BAR

Join Date: Nov 2006

Location: Fairborn Oh

Posts: 144

Cut outs with turbos will help it spool up quicker, so it will help you out. I have a 2 1/2 down pipe with a manual cut out in the down pipe and 2 1/2 exhaust. Spools up quick and loud when i want it, and its nice and quiet when i need it.

03-10-2009, 08:28 PM

Scott-EP

3.0 BAR

Join Date: Oct 2005

Location: St. Augustine FL

Posts: 3,936

You need to tune with the cutout open

03-11-2009, 02:08 AM

ctr99ek

0.5 BAR

Thread Starter

Join Date: Apr 2006

Posts: 81

i have my car tuned with a 2.5 inch dp and 2.5 inch cutout. i was wondering if i can keep my 2.25 exhaust and runa 3 inch dp without much problems, just late spool and power loss