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Description

JCR Titanium Valved Race Exhaust System for 991.2 Porsche 911 GT3 RS (with OPF) / Speedster

The JCR Titanium Valved Race Exhaust System for the 991.2 Porsche 911 GT3 RS (with OPF) and Speedster delivers a lightweight, high-performance solution designed to enhance sound, reduce weight, and optimize flow. Constructed from premium titanium, this system features a valved design that allows drivers to switch between an aggressive race tone and a more refined exhaust note. Tip options include Titanium Megaphone, Titanium Straight, Titanium Superlight Megaphone, Inconel Rolled, and Titanium Silenced configurations, each available in Raw or Polished finishes, with Black Coating offered on select versions; OEM tips can also be used. All tips (excluding Titanium Silenced) are offered in multiple finishes, and the system requires tips with a 3-bolt flange for proper installation, ensuring a fully tailored and precise fit.

Light Weight

Due to its 100% titanium construction, the JCR Titanium Race Exhaust System delivers the most significant weight reduction in the entire JCR range. While any weight savings are beneficial, reducing mass behind the 911’s rear axle offers substantial gains in handling balance. This modification removes nearly 10kg from the rear, providing a true win-win in both performance and weight reduction.

The Design

Through extensive testing and development, JCR has refined key elements in the exhaust system’s design to precisely tune and enhance the tone, pitch, and performance of the Titanium Race Exhaust System. The system incorporates fabricated bends that transition from the large internal diameter directly off the OPF down to 70mm pipework, achieving optimal back pressure to maintain low-end torque while enabling free breathing up to the 9000rpm redline. The design then merges into a critical section that collects gases to create a scavenging effect while targeting unwanted drone frequencies, before flowing into twin 70mm pipes that connect to the factory 991 GT-style 3-bolt flange. This allows customers to choose any compatible tip using the OEM-style 3-bolt fitment. The valved system accommodates OEM valve motors and retains all factory valve functions through the cabin-mounted exhaust control button.

Performance Increase

Every component in the JCR Titanium Exhaust line is engineered to deliver measurable gains in horsepower and torque, with the extent of improvement depending on the specific combination of parts installed.

RSR Sound

For those familiar with the sound of the 2018 GTE 911 RSR, few would argue it is one of the best-sounding race cars ever built. JCR worked diligently to replicate that distinctive tone with the Titanium Race Exhaust System on the non-OPF system and has applied the same expertise to the latest OPF Titanium Race Exhaust System. In this case, hearing truly is believing.

Features

Titanium construction
Inconel valve section
Accepts OEM exhaust valve motor
9.72kg (21.43lbs) weight reduction vs OEM
Horsepower & torque increase
OEM 991 GT style 3-bolt exhaust tip flange
Multiple exhaust tip options:
- Use OEM tips
- JCR inconel rolled tips
- JCR titanium megaphone tips
- JCR titanium superlight megaphone tips
- JCR titanium straight tips
- JCR titanium silenced tips

Applications

Porsche 911 GT3 RS: 991.2 (2018-2019) [4.0L F6]
Porsche 911 Speedster: 991.2 (2019) [4.0L F6]

More JCR Exhaust Products for 991 GT3 RS with OPF and Speedster

Titanium Non-Valved Race Exhaust System
Inconel Race Exhaust Manifolds (991.2 / 992 GT3, GT3 RS with OPF, GT3 Touring, S/T, and Speedster)
Exhaust Valve Delete Kit (991.2 / 992 GT3, GT3 RS with OPF, GT3 Touring, and Speedster)
Titanium OEM-Replacement Megaphone Exhaust Tips
Titanium OEM-Replacement Straight Exhaust Tips
Valved Superlight Race Exhaust System & Manifold Assembly
Non-Valved Superlight Race Exhaust System & Manifold Assembly

Notes

Compatible with GT3 RS models equipped with OPF

About JCR Developments

JCR Developments is an engineering-led performance brand specializing in high-end exhaust and motorsport-derived upgrade solutions for marquee supercars and enthusiast platforms. Known for its expertise in advanced materials such as Inconel and lightweight stainless alloys, JCR focuses on reducing mass, improving thermal efficiency, and unlocking authentic, emotionally engaging sound without compromising drivability or OEM systems integration. Each component is designed through data-driven development, track-informed testing, and precision fabrication, resulting in products that deliver measurable performance gains alongside elevated craftsmanship. Serving discerning drivers, collectors, and professional build shops worldwide, JCR Developments combines technical rigor with boutique-level customer support to enhance the character, capability, and long-term enjoyment of iconic vehicles.

Additional Information

The Bulletproof Automotive website contains many thousands of products purchased in multiple different currencies. All of the prices are entered manually and accurately at the time of entry. Due to the consistently fluctuating international exchange rates, at times prices may not be able to be honored at their original intended rate. We apologize for any inconvenience this may cause, unfortunately our website is unable to compensate dynamically for what can at times be volatile changes in the cost of items due to currency values fluctuating, changes in prices from suppliers, changes in shipping and import duties, and other factors. Rest assured that any order you place on line will be at zero risk to you in this area. If in the event your order cannot be fulfilled at the original intended website price we will offer you a 100% refund, no questions asked. We will continue to do our best to maintain updated prices and we will always continue to offer our price match guarantees as well to ensure our prices are always the best for you. In short, prices may change without notice. It is always advised to give us a call prior to placing your order online to confirm availability and to confirm current pricing.

Shipping Policy

Items that are in stock in the US, either at Bulletproof’s warehouse or at a supplier’s warehouse, are generally delivered within 7-10 days. Special order items from overseas take considerably longer. As a courtesy Bulletproof offers delivery estimates to our customers which take into consideration manufacturer availability and shipping schedule. These estimates represent our best guess based on previous orders from the manufacturer and do not in any way imply a guaranteed delivery window. Many manufacturers work in a “just in time” inventory system and often take 2-20+ weeks to produce an item once an order is submitted. All deliverable items are then sent to our Japanese warehouse. Bulletproof ships a minimum of one full ocean freight container every month from Japan, oftentimes more than one a month. Ocean freight takes an average of 4 weeks. Typically it breaks down to one week in Japan for paperwork and customs, two weeks by boat and one week in US customs/clearance. Due to the wide number of variables between manufacturer and shipping schedules, delivery estimates are simply just that – estimates. We attempt to estimate conservatively and we usually deliver faster than our estimates suggest. It is not Bulletproof’s policy to guarantee delivery time of any special order item, this is impossible for us to do. By ordering you acknowledge that there is no required delivery ETA and an order may not be canceled or altered due to manufacturing or shipping delays, all ETA’s are provided as a best guess only. Please review the full Terms & Conditions here.

BP Pricing Difference

We do pricing a little differently on our JDM brands and we believe in making things simple and clear. No hidden fees or surcharges. Every price you see includes the shipping cost to our office in Los Angeles, California and all the associated taxes/duties/fees for bringing the products into the US. The only shipping you ever pay is from our facility in the US to your location. Be wary of resellers that don’t include the cost of international shipping in their pricing on JDM parts. While we believe we’ll always have the lowest all-in price on JDM products, we offer a price match guarantee for all authentic parts purchased from authorized dealers as well. For many international customers, it’s much more affordable to ship from the USA than from Japan directly, as the air freight and ocean freight costs are typically much less. However, for customers looking to ship directly from Japan outside of North America, or domestically in Japan, we can provide pricing specifically for that scenario. Please do not hesitate to contact us with any pricing questions or concerns. Please email us at sales@bulletproofautomotive.com with any inquiries.

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JCR Titanium Valved Race Exhaust System for 991.2 Porsche 911 GT3 RS (with OPF) / Speedster

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JCR Titanium Valved Race Exhaust System for 991.2 Porsche 911 GT3 RS (with OPF) / Speedster

Light Weight

The Design

Performance Increase

RSR Sound

Features

Applications

More JCR Exhaust Products for 991 GT3 RS with OPF and Speedster

Notes

About JCR Developments

Reviews