Reviewed By Jeffrey C (Castle Rock, CO) Reviewed for a 1998 Mitsubishi Eclipse —11/27/2010 8:29 AM
I have had this spacer on for a couple weeks now, but haven't noticed any significant change in mpg. The whistle is constant, and unless you have the radio on, you will hear it all the time. I also have a K&N FIPK, a Superchips Programmer and a Gibson exhaust. I have noticed an increase in response, however, so its not a complete waste. Since I already had the FIPK installed, install was a breeze and took maybe 15 minutes. Ever since I added 35" Mickey Thompson Baja Radials, the gas mileage I had accomplished before, just about 18mpg on the highway, has plumented. I am currently waiting for a Fitch Fuel Catalyst; we'll see if that helps get me back up.