Invidia Q300 Cat Back Exhaust - Rolled Polished Stainless Tips - Subaru WRX VB 22+ (Sedan) BMW_F30 The engine codes for these

The engine codes for these are (but not limited to): AXX

The mid-section of the exhaust includes an "X-Pipe" to improve the acoustics and performance

8AN PTFE hose end engineered by Radium Engineering for use with Radium PTFE hose

5" Over-Pipe to further improve the performance potential of these headers

Invidia Q300 Cat Back Exhaust - Rolled Polished Stainless Tips - Subaru WRX VB 22+ (Sedan) BMW_F30 The engine codes for theseINVIDIA Q300 CAT BACK EXHAUST Tuned Muffler For optimal flow and enhanced sound Invidia's Q300 tuned muffler systems provide a quieter exhaust sound than both the R400 and N1 Invidia Exhausts. While still keeping volumes in check, their high flow design ensures efficient exhaust flow for optimum engine performance and prevents sacrificing any increases to power or torque. The Q300 mufflers offer a rich, deep, sporty exhaust note which enhances the