Quick high flow cat question...
10-25-2004, 06:17 PM
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Quick high flow cat question...
So, I blew my stock cat, and I'm going to replace it with a Catco hi flow unit. The shop I took it to said they could probably find a 2.5" cat, but that the actualy model for the 2000 Si is a 2.25" model. 
Anyone know which 2.5" cat will fit and which car it is actually designed for? I know this is a newb question, but I could'nt find the info anywhere else... 
Thanks in advance.
Anyone know which 2.5" cat will fit and which car it is actually designed for? I know this is a newb question, but I could'nt find the info anywhere else... Thanks in advance.
10-25-2004, 10:14 PM
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Re: Quick high flow cat question... (civictildeath)
I kinda wanted to get a Catco one, just because the shop gave me a good price installed if I buy from them. I can't do the work myself either, cuz I don't have a garage...
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10-28-2004, 03:33 PM
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Re: Quick high flow cat question... (Nate047)
your stock piping is like 1.75-2" at best..
if your replacing that 2.25" is the smallest you can go and still bolt up more then likely..
if you get a 2.5" cat they will have to reduce it back down or you ll need to wack some stuff around.. = more labor
if your replacing that 2.25" is the smallest you can go and still bolt up more then likely..
if you get a 2.5" cat they will have to reduce it back down or you ll need to wack some stuff around.. = more labor
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