Quick Question...stock SR downpipe size

For the RWD SR20DET cars! Sponsored by Wiring Specialties.
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BadMojo
Posts: 3946
Joined: Sat Feb 22, 2003 2:17 pm
Car: 2007 Mazdaspeed 3

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So, like my title says...what size is the OE downpipe on an SR20DET? I know most of you are running 3" now, but was stock 2.5"?

Thanks!

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f150intally
Posts: 420
Joined: Fri Feb 28, 2003 3:57 pm
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factory down pipe is tiny. like 1-3/4" it sucks and until you replace that your 3" exhaust is not as effective as it could be.
BadMojo wrote:So, like my title says...what size is the OE downpipe on an SR20DET? I know most of you are running 3" now, but was stock 2.5"?

Thanks!
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