HPA's cat-backs are CAD design optimized for flow and back pressure, then tested on a rolling road simulator. Each system is constructed with only the best materials. Stainless steel three inch mandrel bent tubing optimizes flow while the integrated mechanical bypass valve opening under WOT, reduces system back pressure. This is the HPA advantage. The sudden drop in back pressure under acceleration enables the turbo to spin more freely which in turn, reduces turbine EGT's. The lower exhaust manifold temps allow your ECU to maximize its ignition map. More ignition equals more power. The rear mufflers function only to dampen the exhaust noise for a pleasurable cabin experience while commuting in day-to-day traffic.
- Made in Canada
- Full stainless steel construction
- 3" mandrel bent tubing
- Integrated mechanical bypass valve for optimized sound and performance
- Precision TIG welded
- Mounts to factory hangers
- Factory valence fitment