555ho Pipe

Reply Subscribe

Thread Tools

Search this Thread

Apr 14, 2004 | 10:33 PM

#16

muddobber40

Registered User

Joined: Mar 2004

Posts: 68

Likes: 0

From: Cadmus, ks

Quote:

Originally posted by schorb
I think mine is 3.5 inches from turbo to muffler. Not only that, but I think the elbow that sits between the turbo and muffler has an inside diameter smaller than 3.5".
Who is City Muffler and Performance? Do they have a web site?

They are in Oklahoma City. Do a search on ebay for Cummins exhaust. They also advertise on this board. They use the name citymufflerandperformance on ebay. They got a 4" system on there now for $305

Apr 15, 2004 | 01:28 AM

#17

Vaughn MacKenzie

Registered User

Joined: Oct 2002

Posts: 509

Likes: 2

From: Desert Northwest (Pasco WA)

Yep, all upgrade exhaust systems especially for the '03s should be installed along with a boost module to get the full effect.

Click here for City Diesel

Apr 16, 2004 | 12:43 PM

#18

JKNUTSON

Registered User

Joined: Mar 2004

Posts: 3

Likes: 0

From: CENTRAL IOWA

gentleman, just remember the little hy35 turbo outlet i believe is 12cm, i dont care what sz of exh u have on. w/out increasing the orifice sz or going w/ a lrg turbo it won't matter. however getting rid of the 55 gal stock muffler will help it breath better but don't expect any hp/trq increases..the 3rd gen ecm does defuel earlier than the 1-2 gen...