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Old 12-21-2005, 05:13 PM   #11
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Quote:
Originally Posted by 1993 SLE
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Originally Posted by Custom88
When I got both my Aurora and Riviera exhaust done, the shop told me that the stock exhaust was 2.25" (main pipe) and that the split to duals was 1.75".
i find that hard to believe....shop measurement error?
well, unless two different exhaust shops that I've gone to, and several other members in posts that I've read all had crazy exhaust guys...
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Old 12-21-2005, 06:03 PM   #12
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Quote:
Originally Posted by Custom88
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Originally Posted by 1993 SLE
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Originally Posted by Custom88
When I got both my Aurora and Riviera exhaust done, the shop told me that the stock exhaust was 2.25" (main pipe) and that the split to duals was 1.75".
i find that hard to believe....shop measurement error?
well, unless two different exhaust shops that I've gone to, and several other members in posts that I've read all had crazy exhaust guys...
it is true, the riviera has TINY pipes out the back
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Old 12-21-2005, 06:51 PM   #13
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Quote:
Originally Posted by harofreak00
what is wrong with the downpipe... i thought bonnevilles were ok....

wouldnt i change that the same time i do headers?

can i get a confirmation on that 2.5" dia

Go with 3'' downpipe if you can, i think this can be done by some shop where they bend piping.(cheaper than buy one from a brand)


and yes, 2.5 intlet outlet.
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Old 12-21-2005, 11:44 PM   #14
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Quote:
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Originally Posted by Custom88
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Originally Posted by 1993 SLE
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Originally Posted by Custom88
When I got both my Aurora and Riviera exhaust done, the shop told me that the stock exhaust was 2.25" (main pipe) and that the split to duals was 1.75".
i find that hard to believe....shop measurement error?
well, unless two different exhaust shops that I've gone to, and several other members in posts that I've read all had crazy exhaust guys...
it is true, the riviera has TINY pipes out the back
the Bonneville exhaust is identical to the exhaust on my Aurora. Only difference are the tips . The mufflers even have the same part numbers on them.
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Old 12-21-2005, 11:50 PM   #15
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You can go with a 3in DP to the Hi flow and just have the rest back to the mufflers stay stock. btw, had my car on the rack today as I was looking at the cat spot, since I have a hi-flow avalible, and it is 2.5 exhaust system, not 2.25.
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