Porsche 718 GT4 RS Catback Exhaust System

THE RENNELEMENT Valved Exhaust System. Upgrade your vehicle’s sound, performance, and durability with our premium Exhaust System. Engineered for maximum airflow and long-lasting strength, this system delivers noticeable gains in horsepower, torque, and throttle response while producing a deep, aggressive tone.

Constructed from high-grade T304 stainless steel or titanium, this exhaust offers superior resistance to corrosion, rust, and extreme heat — making it ideal for both daily driving and high-performance applications. Precision mandrel-bent tubing ensures smooth exhaust flow with minimal restriction, while TIG-welded joints provide exceptional durability and a clean, high-end finish.

Designed for a direct bolt-on installation, this system maintains factory mounting points for a precise fit without modification.

Key Features:

• Premium T304 stainless steel or Titanium construction
• Mandrel-bent piping for optimized airflow
• TIG-welded for strength and longevity
• Corrosion and heat resistant 
• Deep, aggressive exhaust tone
• Direct bolt-on fitment
• Full valved system for adjusted volume 

Built for enthusiasts who demand quality, performance, and reliability — this exhaust system delivers on all fronts.

PROFESSIONAL INSTALLATION IS RECOMMENDED 

The items installed or applied to vehicles are intended strictly for off-road use only and track vehicles. These modifications may not comply with emissions, safety, or environmental regulations required for public road use under Environmental Regulatory Agency (ERA) laws. It is the sole responsibility of the vehicle owner or operator to ensure adherence to all applicable local, state, and federal regulations. Use on public roads may result in legal penalties or vehicle impoundment. Always verify compliance with local authorities before installation.

We get a large number of custom orders and requests everyday, so as a result it is not always possible for us to keep every item in stock at all times in our warehouse. If you require the item urgently please contact our sales team here to check the stock before you make your purchase.

If you're unsure whether a part will fit your vehicle, feel free to contact us here with your inquiry. Our helpful sales team will reach out to confirm if it's the right match for you.

We offer a flat-rate shipping fee across the continental United States. This excludes Alaska, Hawaii, and U.S. territories. For international orders, additional shipping costs will apply. Please contact us for a quote if you are outside the continental U.S.

Also, feel free to also contact us at ColoradoN5X@Gmail.Com for any other questions.

Not all items are covered by warranty. Items including warranty, will clearly state that there is warranty within the product description. Most of these items will be a standard 1-year warranty against manufacture defects. You, the customer, will be responsible for shipping and handling. We will fix/replace that item with a product that is in working condition if you meet the warranty criteria. Please note that you will be allowed ONLY 1 claim within the year for that product. ColoradoN5X is not responsible for any damage caused during the installation of our products.