great apperance, very noticable difference in horsepower, installation was pretty easy, only had one problem with one of the brackets not lining up correctly but other than that it was good. and the sound that it makes is awesome!!! havent noticed any fuel milage increase due to the love of hearing that growl! but it was definetely worth it. great buy and would reccomend to anyone looking to add some horsepower and aggressivness to their car
Nice Performance Boost
Installed this into a Kia Spectra 5... the instructions were very good, and somewhat easy. Instantly noticed additional torque and horsepower and had too much fun pushing the limits on this car after I installed that I didn't see any improvements in gas mileage. Now that I'm over the fact that I can floor it and drive more sensible I have noticed a slight improvement in mileage, not much but some is better than none.