Description
Direct replacement for the restrictive OEM headers, offering improved power and throttle response throughout the RPM range.
FEATURES:
- Fits all Porsche 991 GT3 Cup vehicles 2017+
- Includes German-imported HJS 200-Cell Tri-Metallic Sportcats
- Optimized for maximum performance with NO catalyst generated check engine light, guaranteed
- Saves 2 lbs from the rear of the vehicle
- CNC mandrel-bent 1pc primary header tubes
- High-velocity motorsports-style merge collector
- Constructed from T304 Stainless Steel
- Warranty - workmanship and manufacturing defects only
INSTALLATION NOTE: To ensure proper header seal, after initial heat cycle, tighten all exhaust bolts to the OEM torque specs.
Why Choose HJS Catalytic Converters:
HJS German imported catalytic converters are made from some of the highest grade materials you can find in a catalytic converter. This yields high performance gains and longevity so it wont deteriorate over time like lower grade catalytic converters. These catalytic converters flow up to 93-95% of a straight pipe in most applications. The benefit is that you get the "straight pipe sound" while still being able to provide enough emissions scrubbing to prevent a check engine light.
Not for sale or use in the state of California on any pollution-controlled vehicle as per the California Air Resources Board.
- FS.POR.991CUP.SHDR