What size cat? - Performance Forum

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What size cat?
Monday, March 30, 2009 10:46 AM
Need to kno whats the correct high flow cat I should get. My car has the 4-1 header, and the vibrant catback which is 2 3/8 size

So should i get the 2.25 in/out or the 2.50 in/out

Thanks BRad


2004 1SV
-Vibrant Catback
-Pacesetter Header
-K&N Typhoon Intake
-Fidanze Short Shifter
-18's coming real soon

Re: What size cat?
Monday, March 30, 2009 10:53 AM
well what size pipe are you going to run after words?

but 2.5


____________________________________
Primer Counts as Custom Paint Right?
BTW: This is my Sig.

Re: What size cat?
Monday, March 30, 2009 11:09 AM
What would be a good size to run?


2004 1SV
-Vibrant Catback
-Pacesetter Header
-K&N Typhoon Intake
-Fidanze Short Shifter
-18's coming real soon
Re: What size cat?
Monday, March 30, 2009 11:09 AM
what size is the pipe from your header?


____________________________________
Primer Counts as Custom Paint Right?
BTW: This is my Sig.

Re: What size cat?
Monday, March 30, 2009 5:11 PM
I have a Tsudo 4-2-1 header. It's a 2.5" exit that steps down to 2.25" so I cut off the 2.25" section and welded my 2.5" highflow cat to it. Welded a 2.5" magnaflow reasonator to that. Works awesome.


You may need an adapter to go from 2.25" to 2.375".
Re: What size cat?
Monday, March 30, 2009 5:57 PM
IMO the 2.5" would be best..


-Aaron
www.TurboTechRacing.com

Performance Parts For Cavalier, Sunfire, Cobalts and More!!!
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