got my cat but... - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

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Old 10-11-2003, 12:00 AM   #1
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which way does it go on, theres nothing saying front back or arrows or anything to say which way it goes on? Get put on saturday cant wait.Hopefully the muffler shop knows Is there anything noticable about a high flow? Im gonna get sound b4 and after. hope it does something.
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Old 10-11-2003, 12:27 AM   #2
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You'll notice a SLIGHT difference, especially if your current Cat is clogged. You really don't get into the performance gains until you open up the muffler. The two go hand-in-hand, but the muffler can still hold you back. Since you already did that, you may be more likely to feel it than someone who has a stock muffler, but I did mine in the reverse order. It'll be interesting to hear your impressions.
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Old 10-11-2003, 10:01 AM   #3
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Red Baron...where did you get your CAT and how much?? I want a Magnaflow since I have my Magnaflow muffler. Hoping to get mine before winter. Thanks!! Good luck with the results!!
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Old 10-11-2003, 10:28 AM   #4
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Quote:
Originally Posted by bonnie94sse
Red Baron...where did you get your CAT and how much?? I want a Magnaflow since I have my Magnaflow muffler. Hoping to get mine before winter. Thanks!! Good luck with the results!!
Got it at a local performance shop, Pro Auto Accessories it was $150 cdn and its gonna cost $70 to have it installed. I asked the muffler shop (that is a magnafow dealer) how much theyd charge me for it. $256 just for the cat
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Old 10-11-2003, 08:51 PM   #5
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How big (long) is it?? Compared to the stock one? Am I going to need some extra pipe when I get mine? Thanks
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Old 10-12-2003, 03:03 AM   #6
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Quote:
Originally Posted by bonnie94sse
How big (long) is it?? Compared to the stock one? Am I going to need some extra pipe when I get mine? Thanks
The stock one was 4x8x24" the magnafow is 4x7x16". Not direct fit but damn sweet. Sound and perforamnce.
Maybe you wouldnt say that a cat would change it much but ...
DAMN did it ever, the sound? Bring on something that sounds better than dynomax and magnaflow combo. (Sound Wars?)
Performance? Well the old one sounds like theres a hard ball in it when i shake it, that was definitely cogging it. cuz it feels like iv unleased sum fearce when i drive "normal" or "performance". yamean.Cruisin is koo. Tried the new mod a couple times gettin on the highway against those willing to "try". Was in the passing lane before all were thinkin about merging on.
What should I do next
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Old 10-12-2003, 11:57 AM   #7
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Sweet! Sounds like you benefit a lot from it. I can't wait to get mine! My CAT is probably original right now, I expect to feel a difference with the Hi-Flow. Maybe a slightly louder grumble would be nice too.
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