Pressure Calibration Kit GM Allison 1000 And 2000 Series 11-16 600Hp+ PPE Diesel PANTS The DPF-back exhaust system features

The DPF-back exhaust system features constant-diameter 5-inch mandrel-bent 409 Stainless Steel tubing and a massive patented tip which virtually eliminates backpressure after the DPF and prevents trailer meltdown

PPE's new LB7 Cast Iron Cylinder Head is the ultimate upgrade to your Duramax engine and eliminates any head gasket or cracking concerns

the GMC Sierra AT4X/Chevy Silverado ZR2 sits lower in the front than the rear

After 58 years

while enjoying power and improved drivability

Pressure Calibration Kit GM Allison 1000 And 2000 Series 11-16 600Hp+ PPE Diesel PANTS The DPF-back exhaust system featuresPressure Calibration Kit GM Allison 1000 And 2000 Series 11 16 600Hp+ PPE Diesel