Gutted stock cat on a turbo car

566 Views 4 Replies 3 Participants Last post by 97SE-R C2, Feb 17, 2004

ThomasSr20

Discussion Starter · Feb 16, 2004

I am planning to get a 3inch testpipe for my car.

I want to know if it make any different on horsepower with the gutted stock cat and a 3inch testpipe.

Thank you

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97SE-R C2

· #2 · Feb 16, 2004

A gutted Stock cat would be worse then a Stock non gutted cat. Its F's up the airflow. Just get a Tesp pipe made.

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ThomasSr20

Discussion Starter · #3 · Feb 16, 2004

97SE-R C2 said:
A gutted Stock cat would be worse then a Stock non gutted cat. Its F's up the airflow. Just get a Tesp pipe made.

Damn i never know a gutted cat is worse than a stock non gutted cat.

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sr20ser1997

· #4 · Feb 17, 2004

I've got a 3" testpipe made by vrs with rear o2 bung for sale.. $40shipped and its yours.

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97SE-R C2

· #5 · Feb 17, 2004

Alot of people when gutting the cat weld a piece of pipe through the center of it to keep the flow. Basically the shell just stays for the visual inspection.

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