Magnaflow catalytic converters
#1
Magnaflow catalytic converters
So I'm going to install new magnaflow catalytic converters (y pipe) and new magnaflow cat back kit with new O2 sensors. Super pumped about it I might add..... Anyway my question is..... Do u see much improvement on MPG's and or HP?
Last edited by AFDisco ll; 10-14-2015 at 03:43 PM. Reason: Wrong spelling
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