997.1 Exhaust Changes
02-08-2021 | 10:19 AM
#16
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Joined: Mar 2017
Posts: 2,499
Likes: 693
From: Philadelphia, Pennsylvania
200 cell cats won't throw any codes. I have the Fabspeed x-pipe cats on my car, along with their long tube headers and valved (PSE-style) mufflers. No codes, just music. The alternating exhaust pulses from the 2 banks sequencing though the X-pipe is supposed to create additional flow for higher performance vs separate crossover cats.
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