Stepped 1-3/4" to 1-7/8" provides more power over stock manifolds. Testing of these new long tube headers has shown a 27 HP gain over Ford's stock headers. But even more impressive is a 58 HP gain after replacing the stock exhaust system with Pypes Headers and a Pypes Super System.
There are already other longtube headers available for S197 2011-14 Mustangs but nothing like these Pypes stepped headers. Pypes could have easily followed the flock and created a standard header with mediocre horse-power gains. But that's not their style. They chose to take it up a notch. Their 2011-13 Mustang longtube headers may not look like the other longtube headers out there but after you feel the performance, you won't mind one bit.
Beefcake Racing is an Authorized Dealer for Pypes Exhaust, call 1-855-827-7223 for more info.
WARNING: This product can expose you to chemicals, including Hexavalent Chromium which is known to the State of California to cause cancer, birth defects, or other reproductive Harm. For more information go to - www.p65warnings.ca.gov
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
