3"high flow exhaust - 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 12-31-1969, 08:00 PM   #1
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i have found that instead of spending top dollar for cat back systems such as magnaflow.i have bent up a bueatiful 3"engine back with 14 gauge aluminized pipeing,3"camarro flowmaster,2 1/2 tails,with 4 1/2 crome res.tips on my 96 bonneville ssei.ive won numerous awards at various shows for my work,at half the price!
its definatly a eye&ear grabber..
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Old 12-31-1969, 08:00 PM   #2
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Congrads. Just remember, you sacrificed looks for performance. I have 3" custom catback w/ no showing tips, all you hear is the V6 at lower rpms and high rpms but not inbetween. But I have a Magnaflow muffler, flowmaster wouldnt sound right on a V6 (I have heard some) and dont flow as well.
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Old 12-31-1969, 08:00 PM   #3
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have you heard a 3"flowmaster on a ssei. sounds way better than 90%of mustangs.for a v6 thats awesome it gave me so much more power because oem head pipe from manifold is 3 " and it down sized to 2 1/2. open the system all the way threw and the res.tip give it the deep mean roar no othe bonneville has.something to think about.
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Old 12-31-1969, 08:00 PM   #4
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Are you running the 80 Series LS1 muffler? If so our exhaust sounds pretty close. I only have it coming out dual 2.5" into Borla dual tips 3".
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Old 12-31-1969, 08:00 PM   #5
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about what price range am i looking at for a 3 inch catback? dont want cheap ****, but not looking for something priced as high as a bassani exhaust (paid $800 for my mustang cat back) thanks for the info
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Old 12-31-1969, 08:00 PM   #6
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My shop that has done all my friends did my entire catback exhaust for $300 dollars including piping, labor and muffler and did it in 2 hours while I watched.
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Old 12-31-1969, 08:00 PM   #7
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I finally received my MIRROR finish STAINLESS muffler. hopefully next week i can get it installed dam doues it look good.
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Old 12-31-1969, 08:00 PM   #8
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I use a L67 Camshaft as a paperweight, your muffler could do that as well and make your desk prettier.
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