Phoenyx Design Racing Downpipes No Cat, Tune Included (20192023 Porsche 718 Cayman GT4)
Catless Racing Downpipes with Included Tuning for Porsche 718 Cayman GT4
The Phoenyx Design Racing Downpipes are engineered to deliver maximum exhaust flow and aggressive performance gains for the Porsche 718 Cayman GT4. By removing the restrictive factory catalytic converters, these catless racing downpipes dramatically improve exhaust efficiency, sharpen throttle response, and support noticeable increases in horsepower and torqueideal for track-focused GT4 builds.
Each downpipe is constructed from 100% high-quality T304 stainless steel and features precision TIG welds along with an integrated heat-stamped heat shield to withstand extreme exhaust temperatures during aggressive driving and extended track sessions. This motorsport-grade construction ensures durability, reliability, and consistent performance.
This package includes tuning support, with tuning instructions emailed after purchase to help optimize the vehicle following installation. The system is also 100% reversible, allowing the car 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
- Manufactured 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 desired
Quick Specs
- Application: Porsche 718 Cayman GT4
- Model Years: 20192023
- 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
- 2019 Porsche 718 Cayman GT4
- 2020 Porsche 718 Cayman GT4
- 2021 Porsche 718 Cayman GT4
- 2022 Porsche 718 Cayman GT4
- 2023 Porsche 718 Cayman GT4
Frequently Asked Questions
Is tuning included with these downpipes?
Yes. This package includes tuning support, with instructions emailed after purchase to help optimize performance after installation.
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 delivers expert guidance, fast shipping, and trusted support for serious Porsche performance builds. If you have questions about Cayman GT4 exhaust upgrades or tuning solutions, contact sales@beefcakeracing.com or call 1-855-827-7223.
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov
