2014 1 3/4 Vs 1 7/8 Headers
Do Headers Make a Difference? 1 3/4 vs 1 7/8 | Dodge Challenger Forum 2006 GMC Sierra 5.3 Speed Engineering Long Tube Headers and full exhaust Kooks vs ARH vs Speed Engineering Side-by-Side Comparison - C7 Corvette Long Tube Headers LT1 6.2L CORRECTION: White board should read - (Peak torque RPM x 1 cy displacement) 88200=PPA Calculate the optimum header ...