question on downpipe

Reply Subscribe

Thread Tools

Search this Thread

Jun 15, 2011 | 10:06 PM

e-bone505

Thread Starter

Banned

Joined: 12-27-08

Posts: 501

Likes: 0

From: Hobbs, New Mexico

question on downpipe

i have a question, if i have a 2.5in pipe on my catback, will a 3in downpipe fit on the 2.5in catback piping....

Jun 15, 2011 | 10:09 PM

myfakeevo

Senior Member

Joined: 12-20-08

Posts: 1,661

Likes: 0

From: rochester ny

if your downpipe has a 2.5 in flange on it.

Jun 15, 2011 | 10:15 PM

e-bone505

Thread Starter

Banned

Joined: 12-27-08

Posts: 501

Likes: 0

From: Hobbs, New Mexico

so if i have 2.5in catback, i have to get a 2.5in downpipe

Jun 16, 2011 | 12:49 AM

rivaladore

Senior Member

iTrader: (7)

Joined: 09-15-09

Posts: 1,934

Likes: 5

From: NJ

Quote:

Originally Posted by e-bone505

so if i have 2.5in catback, i have to get a 2.5in downpipe

No.......if you have a 2.5in catback you need to get a downpipe that has a 2.5 EXIT FLANGE. Your down pipe can be 3in by the header but will taper down to 2.5 where it meets the cat back.

Jun 16, 2011 | 06:54 AM

06cobalt racer

Senior Member

iTrader: (11)

Joined: 03-16-08

Posts: 3,520

Likes: 3

From: Altus AFB, Ok

you CAN put a 3 inch cat back on a 2.5 downpipe but it will more then likely leak. it did on mine

Reply Subscribe

Related Topics

Thread

Thread Starter

Forum

Replies

Last Post

LNF Redemption Build

taintedred07

2.0L LNF Performance Tech

May 28, 2022 03:47 AM

"supercharger Collant" leak

brandon04

Problems/Service/Maintenance

Oct 21, 2015 07:04 AM

Two codes on 09 SS

no_ss

Problems/Service/Maintenance

Oct 18, 2015 11:58 PM

Nathan112i FCOTM submission thread

nathan112i

Featured Car Showcase

Sep 30, 2015 07:12 PM

$90 @ Streets of Willow October 10-11 2015

Extremespeed

South Pacific

Sep 29, 2015 04:34 AM

Reply Share

First
Prev
1 / 1
Next
Last