DP fitment question
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iTrader: (17)
Joined: May 2005
Posts: 22,776
From: Sunnyvale, CA
Car Info: '13 BRZ Limited / '02 WRX
wrong.
some aftermarket downpipes taper down to a 2.5" donut flange, which will bolt properly to a stock exhaust.
some aftermarket downpipes have a 3" flat flange which will not bolt up properly and will have a leak.
some aftermarket downpipes taper down to a 2.5" donut flange, which will bolt properly to a stock exhaust.
some aftermarket downpipes have a 3" flat flange which will not bolt up properly and will have a leak.
Registered User
iTrader: (5)
Joined: Jul 2007
Posts: 1,596
From: Santa Cruz / Fremont
Car Info: 07 Wrx
Just find out how big the aftermarket DP is. If its 3'', you'll needa a 3'' exhaust or else it wont seal well. Or you can getta 3'' exhaust as well. Stocks are 2.5'', so a 2.5'' DP will seal perfectly.
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