Reviewed By terry b (ARIZONA CITY, AZ) Reviewed for a 2005 Ford F-250 —5/9/2017 6:50 AM
finished putting the unit on last weekend so I have not hat a good mpg test but have a better sound and throttle response
Reviewed By Alejandro I (yuma, AZ) Reviewed for a 2009 Ford F-150 —3/15/2017 8:46 PM
I bought this spacer to improve hp and throttle response, i did notice a whistle sound from 2500 to 3000 rpm and also more hp when accelarating. It is not a huge improvement but i did notice a little more than stock.