Reviewed By Martin G (Chicago, IL) Reviewed for a 2004 GMC Envoy —6/27/2008 9:34 PM
WOW!!! I didn't imagine this much torque... It really make a difference. Its a must have along with the airrade intake.
Reviewed By benjamin h (ANDERSON, IN) Reviewed for a 2004 Ford Ranger —7/9/2016 12:42 PM
it was crazy how easy t was i bought the afe cold air intake an the throttle body spacer had my original off an these but on within like 50 min. they have a huge horse power gain i can feel. an a great whistle.