R18 gas mileage question
Before I added my Magnaflow catback system, my car was getting 35-40 mpg; and after I installed it I'm now getting lower mpg. I've had the catback since June and I'm now thinking about changing my short ram intake with a cold air intake; and maybe this might get my mpg back up.
Any suggestions?
Honda Civic 2006 auto ex K&N s/r Magnaflow catback system
Last edited by ericsd241; 11-11-2007 at 01:44 AM.
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