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Old 01-14-2006, 08:59 PM   #1
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Default ssei 3" downpipe?

Anyone have any sources for a 3" downpipe (either with hi-flow cat or off road--without cat) for a 2002' ssei?
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Old 01-14-2006, 09:03 PM   #2
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you will have to go to the exahust shop and have them make you a Mandrel bent pipe....the GP DP will not fit the Bonnevilles
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Old 01-14-2006, 11:33 PM   #3
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You have a 2.5" exaust pipe. You don't need bigger unless you have a XPZ cam and other multi thousand dollar mods.
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Old 01-14-2006, 11:39 PM   #4
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Quote:
Originally Posted by fantastic88
You have a 2.5" exaust pipe. You don't need bigger unless you have a XPZ cam and other multi thousand dollar mods.
all the restriction in a 00+ SSEi exhaust is in the downpipe/cat and manifolds.. by enlargening / smoothing the flow through these items you can greatly reduce knock retard, even with a stock engine
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Old 01-15-2006, 12:02 AM   #5
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Really, it did seem like my downpipe was larger than the mufflar down.
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Old 01-15-2006, 10:18 AM   #6
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Yes, it look ,but the inside is really smaller.

A 3" downpipe will greatly help.
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Old 01-15-2006, 11:28 AM   #7
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Yeap..Go with a 3" DP into a Hiflo Cat, and then from the cat back, just keep it stock. After the hiflo, its pointless to mod the rest of the exhaust unless you want a different sound.
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Old 01-15-2006, 11:33 AM   #8
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Quote:
Originally Posted by Chad V
Yeap..Go with a 3" DP into a Hiflo Cat, and then from the cat back, just keep it stock. After the hiflo, its pointless to mod the rest of the exhaust unless you want a different sound.
Very true you cant gain anything by changing the mufflers, even the Fastest Bonnevilles run the stock Mufflers
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