XForce 3in Dump-Pipe and Cat Kit - Stainless Steel Mazda 3 MPS BL 09-14 go fast bits By increasing the bore and

By increasing the bore and piston size of the pump internals

which can be adjusted to stop at various points between sports mode and silence mode

These pistons are engineered with compression ratios very close to the factory 2

Due to the larger size of your new inlet pipe

76mm (3 inch) tubing replaces restrictive 60mm factory tubing

XForce 3in Dump-Pipe and Cat Kit - Stainless Steel Mazda 3 MPS BL 09-14 go fast bits By increasing the bore andDESCRIPTION XFORCE offers a range of uniquely engineered and designed stainless steel and mild steel bolt on exhaust systems. These exhaust systems bolt directly to existing mounting points making installation easy. They are built to perform well with materials designed for longevity and like all XFORCE exhaust systems they look and sound great! SPECIFICATIONS Polished 304 stainless steel Dump pipe with 100 cell metallic cat 3" reducing to 2. 5"