Invidia Q300 Catback Exhaust WRX / STI (2015-2018) Mazda The 'Street' midpipe features a

The 'Street' midpipe features a flex joint for easy installation as well as an inline resonator giving this system an aggressive yet deep and subtle touring style tone

0L VAG engine uses O-Ring sealed piston which

Spring Rates: F: 3

This item is NOT an OEM replacement pipe

boost engine functions

Invidia Q300 Catback Exhaust WRX / STI (2015-2018) Mazda The 'Street' midpipe features aThe flat bottom shaped muffler design of the 2015+ WRX STI Invidia Q300 Catback Exhaust single exit system results in improved high speed aerodynamic performance. The muffler inside contains continuous piping design and use of Advantex material that results in an excellent free flow exhaust with optimized back pressure, giving greater horsepower, torque gains and a rich deep sporty sound. The use of SUS304 polished stainless steel piping, mandrel bent