down Pipe

Reply Subscribe

Thread Tools

Search this Thread

Oct 25, 2013 | 08:48 AM

diego-ted

Thread Starter

Junior User

Joined: Dec 2003

Posts: 66

Likes: 0

down Pipe

I just bought a 2002 PSD. My privous truck was a 95 and one of the first mods was to replace the squash pipe with a new down pipe. Is this mod needed on the 2002?

thx Ted

Oct 25, 2013 | 10:01 AM

Christof13T

Postmaster

Joined: Apr 2012

Posts: 2,613

Likes: 8

From: North Georgia

Not necessary on an 02.
You should have a 3.5" downpipe if its stock.
Be more concerned about the up pipes connection at the baby's butt.
The donuts get weak and leak... hampering drive pressure... i.e... boost pressure.
Look for any signs of soot marks on the pipes near the connections.

Oct 25, 2013 | 10:06 AM

cleatus12r

Butt-Head

Joined: Apr 2004

Posts: 9,448

Likes: 2,934

From: Reed Point, MT

Quote:

Originally Posted by Christof13T

Not necessary on an 02.
You should have a 3.5" downpipe if its stock.

3" pipe. It only becomes 3.5" once it passes the transmission. That being said, there is no reason to replace it.

Oct 25, 2013 | 10:06 AM

BWST

Got Data?

Joined: Dec 2012

Posts: 4,251

Likes: 1,382

From: Lake Stevens, WA

If you're adding fuel, you could consider changing the muffler from OEM to a Walker BTM or equivalent. I'm told that change gives much of the improvement a full 4" exhaust does.