bigred

I just bought an 08 civic si sedan and wasn't sure what exhaust to buy.















1)GReddy EVO2 Cat-Back Exhaust System















2)Skunk2 Mega Power Cat-Back Exhaust System















3)GReddy SP2 Cat-Back Exhaust System















4)GReddy Ti-C Cat-Back Exhaust System















Then I have an intake question, Which one provides the best horsepower gain, and the best mpg gain, or loss.















1)Injen Cold Air Intake (Uses MR Technology)















2)Injen Short Ram Intake( Uses MR Technology)















3)AEM Cold Air Intake















4)AEM Short Ram Intake

chaGGY

go wit da greddy sp2 exhaust and the injen short ram intake

Sk8er boy

depends on u















So if i were u, im gonna choose AEM intake, and Greddy















U can go to www.hondahookup.com or www.vividracing.com