Porsche Modular Headers And HJS Catalytic Converters - 911 | 2012-2016 FS-POR-991-MH-SC Choose your Configuration:Sport Cat+Cat Bypass Pipes Selector Fork: A key component

Selector Fork: A key component that moves to engage different gears within the transmission

Extreme Pressure Performance: Withstands heavy loads up to 65

This high-quality pre-cleaner is designed to shield your air filter from dirt

for 911 GT3 (2014-2015) models

Motor: 1/3 horsepower

Porsche Modular Headers And HJS Catalytic Converters - 911 | 2012-2016 FS-POR-991-MH-SC Choose your Configuration:Sport Cat+Cat Bypass Pipes Selector Fork: A key componentModular Headers And HJS Catalytic Converters For Porsche 991 Carrera (2012 2016) Models. SOUND: Enhanced Exhaust Note: Sportier, more aggressive sound profile. Increased definition of higher frequency tones. Robust and transparent off throttle burbles. Track Focused Sound (Cat Bypass): For race track use only. Extremely aggressive, race bred sound. Not overbearing in volume. Transforms the car's character. PERFORMANCE & FEATURES: Power Gains: +25 HP