Description
Free ground shipping.
This is a made-to-order header set. Our "In Stock" status does not include build time. Actual delivery time can be 1-3 weeks.
Direct replacement for the restrictive OEM headers, offering improved power and throttle response throughout the RPM range.
Features:
- Fits all Porsche 991 GT3 / GT3 RS vehicles 2014+
- 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
Installation Note:
To ensure proper header seal after initial heat cycle, re-tighten all exhaust bolts to the OEM torque specs.
Why 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.
If you'd like to learn more, watch the video about HJS catalytic converters.