Reviewed By Kenny B (Springport, IN) Reviewed for a 1994 Jeep Wrangler —3/8/2012 4:57 AM
I put this on with a aftermarket cold air intake and made a big difference on my 4cyl jeep wrangler.
Reviewed By Jeffrey B (WEST DENNIS, MA) Reviewed for a 2007 Jeep Wrangler —12/23/2013 2:25 AM
The spacer provided me with an extra 2.3 miles per gallon. No whistle to be heard, with only a slight increase of performance. The only issue was it came with the wrong gasket. Overall I would do it again.