Will the Capristo Valved Sport Cats fit my 991.2 Porsche 911 GT2 RS?

Yes. The Capristo Valved Sport Cats are built specifically for the 2018-2019 991.2 Porsche 911 GT2 RS and its 3.8-liter twin-turbo flat-six. They install at the factory mounting points and connect to the standard exhaust system or a Capristo cat-back, so no cutting or custom fabrication is needed.

How does the valve in the Capristo sport cats work?

The integrated valve stays closed at low engine speeds to build the back pressure that supports low-end torque and brings the catalysts up to temperature. As the revs rise it opens for near-unrestricted flow, which is where the sharper throttle response and fuller top-end sound come from. The car stays civil in traffic and opens up on track.

Will these sport catalysts trigger a check engine light?

They are designed not to. Capristo coats the 200-cell substrates with a proprietary treatment that helps keep the factory oxygen sensors reading correctly and reduces the chance of a light. On some GT2 RS cars, depending on tune and sensor tolerance, a supporting tune or O2 sensor extensions may still be required to keep the light off for good.

What are the Capristo sport cats made from?

They are manufactured from T309 (1.4828) grade stainless steel, chosen for its resistance to the extreme heat a turbocharged flat-six produces, and hand-polished to a mirror finish. The tubing is mandrel bent and the assemblies are hand-welded in Germany. T309 is rated to withstand sustained exhaust-gas temperatures beyond 600 degrees Celsius.

Do the Capristo sport cats add horsepower?

They cut exhaust restriction in comparison to the Factory Equipment, which can free throttle response and small gains, but Capristo does not publish specific horsepower figures for this set and results vary with supporting modifications and tuning. The larger, more noticeable change on the GT2 RS is the louder, harder exhaust note and the sound control the valve provides.

Are the Capristo Valved Sport Cats street legal?

No. These sport catalysts are recommended for off-road and competition use only. They are not CARB approved and are not legal for sale or use on pollution-controlled vehicles in California or other CARB states, and no EPA anti-tampering determination has been made. Check your local regulations before any road use.

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Description

Capristo Valved Sport Cats for 991.2 Porsche 911 GT2 RS

Capristo Valved Sport Cats for the 991.2 Porsche 911 GT2 RS answer the question every owner of Weissach’s most track-focused 911 eventually asks: how to free the engine’s voice without surrendering the catalysts or the car’s road manners. Built in Germany to the hand-finished standard that has made Capristo a fixture under the world’s fastest road cars, these free-flowing 200-cell sport catalysts carry an integrated valve that swings from track-loud to road-quiet on demand. The payoff is quicker throttle response and a harder, more metallic edge to the 3.8-liter twin-turbo flat-six in comparison to the Factory Equipment, delivered through mirror-polished T309 stainless that laughs off the heat a motorsport engine throws at it. For a car this rare, it is the uncommon upgrade that suits a Sunday drive and a flat-out lap equally.

Valve System

At low engine speeds the valve stays closed to build the back pressure that supports low-end torque and brings the catalysts up to temperature quickly; as the revs climb it opens to let the 3.8-liter twin-turbo breathe with minimal restriction, which is where the sharper response and fuller top-end voice come from. It gives the GT2 RS two clear personalities from one set of sport cats, civil when you want it and savage when you don’t.

Construction

Each catalyst is built from T309 (1.4828) stainless steel, the grade Capristo favours for its resistance to the extreme heat a turbocharged flat-six produces, then hand-polished to a mirror finish. The substrates carry a free-flowing 200-cell count and a proprietary coating Capristo developed to keep the factory oxygen sensors reading correctly. The tubing is mandrel bent and the assemblies are hand-welded in Germany, so the parts clear the factory heat shielding and bolt up to the standard mounting points without cutting or fabrication.

Design and Performance

On the 991.2 GT2 RS the Capristo Valved Sport Cats install at the factory mounting points and connect to the standard exhaust system or a Capristo cat-back, so the car keeps its OEM-level fit and finish. In comparison to the Factory Equipment the lower cell count and smoother internal path cut restriction, which frees throttle response and lets more of the twin-turbo flat-six’s character through, while the valve keeps cabin drone in check on the highway. It is a true track-and-street setup rather than a one-note race part.

Features

Integrated valve system for on-demand sound control, from track-loud to road-quiet
Free-flowing 200-cell sport catalysts
Hand-polished T309 (1.4828) stainless steel construction
Proprietary substrate coating designed to help prevent a check engine light
Mandrel-bent tubing, hand-welded and finished in Germany
Rated for sustained exhaust-gas temperatures beyond 600 degrees Celsius
Bolt-on fit at the factory mounting points, no cutting or fabrication
Sold as a complete set for both cylinder banks

Applications

Porsche 911 GT2 RS: 991.2 | 2018-2019 | 3.8L Twin-Turbo Flat-Six

Notes

May cause CEL
CEL requires tuning or 02 extensions
Utilizes OEM mounting points

Frequently Asked Questions

Will the Capristo Valved Sport Cats fit my 991.2 Porsche 911 GT2 RS? Yes. The Capristo Valved Sport Cats are built specifically for the 2018-2019 991.2 Porsche 911 GT2 RS and its 3.8-liter twin-turbo flat-six. They install at the factory mounting points and connect to the standard exhaust system or a Capristo cat-back, so no cutting or custom fabrication is needed.
How does the valve in the Capristo sport cats work? The integrated valve stays closed at low engine speeds to build the back pressure that supports low-end torque and brings the catalysts up to temperature. As the revs rise it opens for near-unrestricted flow, which is where the sharper throttle response and fuller top-end sound come from. The car stays civil in traffic and opens up on track.
Will these sport catalysts trigger a check engine light? They are designed not to. Capristo coats the 200-cell substrates with a proprietary treatment that helps keep the factory oxygen sensors reading correctly and reduces the chance of a light. On some GT2 RS cars, depending on tune and sensor tolerance, a supporting tune or O2 sensor extensions may still be required to keep the light off for good.
What are the Capristo sport cats made from? They are manufactured from T309 (1.4828) grade stainless steel, chosen for its resistance to the extreme heat a turbocharged flat-six produces, and hand-polished to a mirror finish. The tubing is mandrel bent and the assemblies are hand-welded in Germany. T309 is rated to withstand sustained exhaust-gas temperatures beyond 600 degrees Celsius.
Do the Capristo sport cats add horsepower? They cut exhaust restriction in comparison to the Factory Equipment, which can free throttle response and small gains, but Capristo does not publish specific horsepower figures for this set and results vary with supporting modifications and tuning. The larger, more noticeable change on the GT2 RS is the louder, harder exhaust note and the sound control the valve provides.
Are the Capristo Valved Sport Cats street legal? No. These sport catalysts are recommended for off-road and competition use only. They are not CARB approved and are not legal for sale or use on pollution-controlled vehicles in California or other CARB states, and no EPA anti-tampering determination has been made. Check your local regulations before any road use.

About Capristo

Capristo Exhaust is a German manufacturer of premium exhaust systems and sport catalysts for the world’s most exclusive performance cars. Every Capristo part is engineered with 3D laser scanning and CAD modelling, CNC-cut, mandrel bent, then hand-welded and hand-polished at the company’s facility in Germany. Capristo builds in high-grade T309 (1.4828) stainless steel rated to withstand sustained exhaust-gas temperatures beyond 600 degrees Celsius, the same resistance to heat and fatigue prized in motorsport. The result is hardware that looks, sounds, and lasts the part on a six-figure car.

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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Capristo Valved Sport Cats for 991.2 Porsche 911 GT2 RS

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Capristo Valved Sport Cats for 991.2 Porsche 911 GT2 RS

Valve System

Construction

Design and Performance

Features

Applications

Notes

Frequently Asked Questions

About Capristo

Reviews