Phoenyx Design Racing Downpipes No Cat, Tune Included (20222025 Porsche 718 Cayman GT4 RS)
Catless Racing Downpipes with Included Tuning for Porsche 718 Cayman GT4 RS
The Phoenyx Design Racing Downpipes with Tune Included are engineered to deliver maximum exhaust flow and uncompromised performance for the Porsche 718 Cayman GT4 RS. By removing the restrictive OEM catalytic converters, these catless racing downpipes dramatically improve exhaust efficiency, throttle response, and high-RPM performanceperfect for track-focused GT4 RS builds.
Each downpipe is fabricated from 100% high-quality T304 stainless steel and features precision TIG welds combined with an integrated heat-stamped heat shield to handle extreme exhaust temperatures during aggressive driving and sustained track sessions. This motorsport-grade construction ensures durability, reliability, and consistent performance under demanding conditions.
This package includes tuning support, with tuning instructions emailed after purchase to help optimize performance following installation. The system is also 100% reversible, allowing the vehicle to be returned to stock at any time. All necessary mounting hardware is included for a clean, direct bolt-on installation.
Performance Features
- Catless racing downpipe design for unrestricted exhaust flow
- Improved horsepower, torque, and throttle response
- Optimized for high-RPM, track-focused performance
- Constructed from T304 stainless steel
- Precision TIG welded for strength and longevity
- Heat-stamped heat shield for thermal protection
- Includes all required mounting hardware
- Fully reversible return to factory configuration if needed
Quick Specs
- Application: Porsche 718 Cayman GT4 RS
- Model Years: 20222025
- Design: Catless racing downpipes
- Material: T304 stainless steel
- Welding: Precision TIG welds
- Heat Protection: Integrated heat-stamped heat shield
- Includes: Mounting hardware and tuning support
Tune Information
- Tuning Instructions: Emailed after purchase
Emissions & Legal Notice
Emissions Non-Compliance Notice: Removing, disabling, or altering emissions equipment on a pollution-controlled road vehicle is illegal. Installing devices or software that trick, disable, or modify emissions controls and monitors is also illegal. This product is sold only for racing, competition, track, hobby, or other off-road use. Its use is prohibited in any motor vehicle subject to emissions inspection or control.
This product is legal in California only for racing vehicles that may never be used, registered, or licensed for highway operation.
Disclaimer: This product removes the OEM catalytic converters and is strictly intended for closed-course track events and off-road use only. It should never be driven on public roads. This product is or contains a racing cat bypass pipe and will trigger check engine lights on OBD-II vehicles. Racing software is recommended to prevent fault codes and warning lights. These components are not CARB certified and not EPA certified. All installation and usage risk is assumed by the end user and installer. Always verify local, state, and federal regulations before purchasing or installing aftermarket exhaust components.
Fitment
- 2022 Porsche 718 Cayman GT4 RS
- 2023 Porsche 718 Cayman GT4 RS
- 2024 Porsche 718 Cayman GT4 RS
- 2025 Porsche 718 Cayman GT4 RS
Frequently Asked Questions
Is tuning included with these downpipes?
Yes. This package includes tuning support, with instructions emailed after purchase to assist with optimizing performance.
Are these downpipes legal for street use?
No. These downpipes are intended strictly for off-road, track, and competition use and are not legal for use on public roads or emissions-controlled vehicles.
Why Buy from Beefcake Racing?
Beefcake Racing provides expert guidance, fast shipping, and trusted support for serious Porsche performance builds. If you have questions about GT4 RS exhaust upgrades or race-only tuning solutions, contact sales@beefcakeracing.com or call 1-855-827-7223.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
