APEXi N1-X (N1 Evolution Extreme) Universal Muffler, Turbo (156-A022) 18140 ZX6-XTG4 kit features an Xtreme

ZX6-XTG4 kit features an Xtreme pressure plate for the most demanding driver

get the Driver Side Side Skirt 108262

The Pro GUARD 7 air filter delivers increased airflow while providing the highest level of filtration efficiency available 99

Reduced Damper Flex

Outlet temperature up to 50 lower than stock intercooler

APEXi N1-X (N1 Evolution Extreme) Universal Muffler, Turbo (156-A022) 18140 ZX6-XTG4 kit features an XtremeThe N1 Evolution Extreme Muffler is a premium upgrade based on the RS Evolution Muffler, enhanced with full titanium tips. It's a hybrid design that combines the power and free flowing nature of our N1 Muffler with the quiet and discreet sound output of our Hybrid Megaphone Evolution Muffler. This muffler is the result of APEXis patented megaphone piping structure design and enlarged piping diameters, ensuring ultimate performance for turbo charged