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R: 163mm stroke
core length 22
Durable And Light Weight Compared To Stock Arms
Note: Can be used as Air-to-Coil
Subaru XV Crosstrek 13-15
Megan Racing 4" Stainless Tip Catback Exhaust for Miata MX5 MX-5 90-93 1.6L NA6C 300ZX R: 163mm strokePart #: MR CBS MMX589Being that an engine is basically a glorified air pump, engine performance relies on how much air fuel mixture can enter and how much exhaust can exit the combustion chambers. Though it makes logical sense to maximize the engine's performance using free flowing intake and exhaust designs. Car manufacturers are forced to outfit vehicles with quiet, restrictive exhaust components in order to comply to sound and emissions
