Replace cat's w/straight pipes?
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Joined: Jan 2004
Posts: 97
Likes: 0
From: Tinley Park IL
i am sure some vendor might have a replacement at a pricey alternative but when I added my long tubes I went to Home Depot, and bought a section of 2.5" stainless steel piping (usually near the drainage or bathroom supplies) and cut it into two pieces that I measured. I used sealing band clamps that covered about .5"-1" over the h pipe off of the headers and the the rest on the straight pipes. Then put another set of clamps between the x-pipe and the straight pipes. It was really loud especially with a loudmouth exhaust.
Recently I placed a set of random cats on my car b/c the addition of straight pipes caused the tuning of my car to be on the high rich side and the exhaust fumes and debris where tarnishing the rear of my car with all of the hydrocarbons exiting the exhaust.
hope this helps
Recently I placed a set of random cats on my car b/c the addition of straight pipes caused the tuning of my car to be on the high rich side and the exhaust fumes and debris where tarnishing the rear of my car with all of the hydrocarbons exiting the exhaust.
hope this helps
Safety Car
Joined: Aug 2000
Posts: 4,537
Likes: 84
From: St. Joseph MO
Cruise-In III Veteran
Cruise-In IV Veteran
with my TTS longtubes and Corsa x-pipe. I used the collector flanges from the ehaders and made my own intermediate/off road-pipes. Also added a couple of sensor bungs for the wideband.
Safety Car
Joined: Aug 2000
Posts: 4,537
Likes: 84
From: St. Joseph MO
Cruise-In III Veteran
Cruise-In IV Veteran
Originally Posted by mowrey96
Can the stock C5 converters be gutted?
Melting Slicks
Joined: Feb 2001
Posts: 2,137
Likes: 1
From: Oklahoma City OK
Cruise-In III Veteran
You can make your own "over the axle" straight pipes for very little money.
Get some pipes with mufflers from a coupe. Cut the mufflers off. Add about 12-inches of 2-1/2" straight pipe and some new tips, Bingo! Low cost, low weight, and loud!
Most say you won’t gain much hp/tq with straight pipes, but comparison dyno runs on my ’02 with heads, cam, headers and X-pipe showed an increase of 11-horsepower and 8-ft/lbs above 6000-rpm. There was a couple hp/tq lost in most of the mid-range with the straight pipes installed.
Get some pipes with mufflers from a coupe. Cut the mufflers off. Add about 12-inches of 2-1/2" straight pipe and some new tips, Bingo! Low cost, low weight, and loud!
Most say you won’t gain much hp/tq with straight pipes, but comparison dyno runs on my ’02 with heads, cam, headers and X-pipe showed an increase of 11-horsepower and 8-ft/lbs above 6000-rpm. There was a couple hp/tq lost in most of the mid-range with the straight pipes installed.
