Reviewed By christopher s (New Lenox, IL) Reviewed for a 2009 Cadillac CTS —11/21/2016 9:21 PM
Took about 45 min to install sounds great I noticed the suction it has right away would buy another for my Tahoe
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.