08-25-2019, 11:31 PM
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#14
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Senior Member
Join Date: May 2012
Drives: 2013 Series 10 6MT FR-S
Location: Moreno Valley, CA
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Quote:
Originally Posted by 86MLR
Punched out 17+ OEM header, 2.5" overpipe, 2.5" resonated front pipe, 2.5" cat back
Then
Replaced cat back to OEM with zero change to performance, knocked down the noise a bit
Then
Replaced 17+ punched out header with Tomei UEL header, zero performance gain, lots more noise though, put OEM header back on because I'm not a **** and care about my neighbors sanity and hearing.
For NA The OEM system flows great once the restrictions are removed.
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Even with the cat punched out... It still cut down on noise? I am very curious about this
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2013 Series 10 FRS #553
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