Exhaust Shopping List - Page 2 - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


Performance, Brainstorming & Tuning Talk about modifications, or anything else associated with performance enhancements. Have a new idea for performance/reliability? Post it here. No idea is stupid! (please use Detailing and Appearance for cosmetic ideas)

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Old 11-16-2004, 08:33 PM   #11
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For for a magna flow for a high flow cat. 55 bux on ebay and I think free shopping??? last I saw...not positive.
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Old 11-16-2004, 09:21 PM   #12
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Dude are you drunk or did you break your fingers? lol jk
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Old 11-17-2004, 12:55 PM   #13
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So could I just grab one of Magnaflows universal cats and then just take it to a shop?
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Old 11-17-2004, 02:18 PM   #14
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get a 2.5" inlet and 2.5" outlet high flow magnaflow or carsound cat. the exhaust shop shouldnt have any problems puttin it in if you take it to em. you find tips you like yet?
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Old 11-17-2004, 02:26 PM   #15
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Havent searched for the tips but I found those High Flow cats on ebay and they are pretty cheap. So 2.5'' is the size pipe on my SE then? So for the muffler Im guessing that would be 2.5'' as well.
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Old 11-17-2004, 05:30 PM   #16
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Quote:
Originally Posted by CmptrNerd
Havent searched for the tips but I found those High Flow cats on ebay and they are pretty cheap. So 2.5'' is the size pipe on my SE then? So for the muffler Im guessing that would be 2.5'' as well.
Your pipe is 2.25" but gm usually put a 2.5" catalytic converter on, just inflated the pipe a little goin in and downsized it back to 2.25 out the back of the cat, the 2.5 will flow a little better, and yes i would also go with a 2.5" muffler, you will have a very nice flowing exhaust after you do this and should sound nice too i kinda wanna hear one of these full boar mufflers... keep us updated.
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Old 11-17-2004, 06:48 PM   #17
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Dont know about the sound clips but I can definitely upload some pics.
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Old 11-17-2004, 11:48 PM   #18
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I just redid the system on my 94 SE. It has a new 2.5" cat, 30" resonator after the cat that goes to a 80 series Flowmaster and exits with dual (hidden) pipes. The whole thing cost about $400 (cat alone was about $150). It works fine but the Flowmaster creates some interior resonance in the 2200-2500 RPM range.
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Old 11-18-2004, 02:19 AM   #19
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Your cat was $150? How come is it just like an OEM from GM or is it a high flow? So are you pipes brand new too or you just replaced a few things? I would like to see what the prices would be for new stainless steel piping so I could have a nice custom cat back exhaust which I would be very proud of.
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