Reviewed By Chris H (Marysville, OH) Reviewed for a 2014 Honda Civic —5/8/2016 9:26 PM
They don't claim an mpg improvement but I see about 1 mpg improvement. The sound is great. If you love hearing your Vtec kick in this is for you. I don't realllllly notice much of a big improvement on performance but I will say that I notice more torque steer when shifting from 1 to 2 to 3.