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Discussion Starter · #1 ·
MY 3.8 M/T Exhaust Set up: (Chip Refresh)

Stock Manifolder + Stock DownPipe + Cat delete + 63 pipe Mid Custom pipe

(Custom resonator) + Stock end pipe.

I had some chance to exchage AfterMarket DownPipe (61Ø).

Can I respect to increase power when i change Downpipe (61Ø)?
 

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Work in Progress
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I would imagine the HP gains on a donwpipe change would be minimal. What aftermarket brand did you go with?
 

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Nice . . how much was it?
 

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Discussion Starter · #6 ·
I enjoyed Rolling Drag with my friend 3.8 AT Full Intake/Exhaust Tune car(+ Chip Tune)

My GC 2,3th gear was superior to my friend.

But my GC fell astern in 4th gear. :wtc: (160km~200km)

and it is a same power in 5th gear.


so i expect some high-speed power-up after changing downpipe
 

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