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3.15" vs 4" DP and Exhaust
Anyone know the gains of a 4" exhaust system vs the factory 3.15"? I dont see too many people running a 4" DP outlet and catback. Curious as to why there isnt more people running this setup..- travsam89
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- Forum: B58 6-Cyl Engine, Exhaust, Drivetrain, Bolt-Ons