Will the RENNKRAFT Modular GTLM Exhaust fit my 992 GT3 or GT3 RS?

Yes. The RENNKRAFT Modular GTLM Exhaust is built for the 992 Porsche 911 GT3 from 2022 and the GT3 RS from 2023, both with the 4.0L flat-six. It is a complete headers-to-tips system and installs as a bolt-on with no cutting or welding. Confirm your model year with us before ordering if your car is a 2025 or newer.

What is the difference between this and the headers on their own?

This package is the complete system from the cylinder heads to the tips, including the headers, the HJS catalysts, the cast X-pipe and your choice of tips. The headers sold separately are just the front section and keep whatever rear section you already have. Buy the headers alone if you want to keep the factory muffler or run a cat-back system.

How much power does it add?

Fabspeed's testing shows 31 whp and 39 ft-lbs of torque at 4250 rpm, or 37 hp at the crank. More usefully, gains of over 20 whp hold from 6000 rpm all the way to redline rather than appearing only at one point on the curve. No ECU tune is required.

Yes. This package produces interior drone and Fabspeed says so plainly. It is built for maximum performance and a race-car voice, and everyday comfort is the trade. Owners who want the sound without the drone should look at Fabspeed's cat-back systems for this chassis, which are engineered specifically to avoid it.

Do I lose much by running the catalysts instead of the competition pipes?

Almost nothing. Fabspeed's testing put the difference at one to two peak whp, because the 200 cell HJS catalysts are unusually large and free flowing for the factory location. The competition pipes exist mainly to protect the catalysts from endurance-racing abuse rather than to find meaningful extra power.

What tips come with it?

You choose at checkout from matte carbon fiber, mirror polished stainless, brushed stainless, Satin Black or 90 degree race turndown tips. The turndown option aims the outlet down and is the one to take if your circuit enforces a sound limit, given how loud this package is in its other configurations.

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Description

Fabspeed RENNKRAFT Modular GTLM Exhaust Package for 992 Porsche 911 GT3 & GT3 RS

The RENNKRAFT Modular GTLM Exhaust is the complete answer: long tube headers to tips, nothing factory left in the path, and the most power Fabspeed can extract from a 992 GT3 while keeping proper emissions equipment on the car. Fabspeed built it in order. The headers came first, through repeated dyno runs and successive revisions until the long tube geometry was right. Then the rear of the car: the factory muffler section replaced outright by extra-large 200 cell HJS catalysts and Fabspeed’s signature cast 70mm X-pipe, which testing showed was worth substantially more through 3,000 to 6,000 rpm than a conventional crossover or a pair of separate 90-degree pipes. The catalysts flow so well that the competition pipes are worth only one to two peak whp over them. Eighteen pounds come off, and a US patented V-band system lets you change configuration in your own garage.

Features

Complete headers-to-tips system, the most powerful emissions-compliant exhaust Fabspeed builds for this car
US patented RENNKRAFT modular design, the only system of its kind
Quick-release V-band clamps change between the street configuration and the competition pipes (competition pipes are not intended for street use)
Running the competition pipes at events keeps the catalysts out of endurance-racing abuse
Springs retain the collectors, allowing thermal expansion and improving durability
Gains of more than 20 whp hold from 6000 rpm all the way to redline
No check engine light, guaranteed, in the Sport Cats configuration
Lightweight, with the saving concentrated behind the rear axle where it does the most for handling
Simple bolt-on installation, no cutting or welding required
Backed by the Fabspeed lifetime warranty

Specifications

Material: T321 stainless steel mil spec tubing to ASME specifications
Tubing: CNC mandrel bent, 2.75″ / 70mm
Headers: equal length, long tube
Collectors: Burns Stainless Formula 1 and Indy car style high velocity merge, spring retained
Flanges: CAD designed investment cast stainless steel
X-pipe: Fabspeed signature cast, 2.75″ / 70mm
Catalysts: German Emitec Tier 1 HJS HD tri-metallic, 200 cell, Euro 6 homologated
Connectors: quick-release V-band
Weight savings: 18 lbs compared to the factory system
Gains: 31 whp and 39 ft-lbs at 4250 rpm, 37 hp at the crank
Tips: matte carbon fiber, mirror polished stainless, brushed stainless, Satin Black or 90 degree race turndown

Applications

Porsche 911 GT3: 992 | 2022-present | 4.0L F6
Porsche 911 GT3 RS: 992 | 2023-present | 4.0L F6

Notes

This package is loud and produces interior drone. Fabspeed builds it for owners who want maximum performance and accept that trade against everyday comfort.
Intended for vehicles without a GPF. On European GPF-equipped cars this system will set a check engine light, and those cars should be treated as closed-course competition use only.
Race and track oriented products are not covered by Fabspeed’s Sound Solutions Guarantee
The no check engine light guarantee applies to the Sport Cats configuration
This package contains the Fabspeed RENNKRAFT Modular Headers with HJS Cats; if you want to keep the factory rear section or pair the headers with a cat-back system instead, buy the headers on their own and this package is not needed
Cat-back alternatives for the rear section are the Supercup, the Titanium Supercup, the Valvetronic Nordschleife and the Titanium Valvetronic
Tips are also sold separately as the Fabspeed Deluxe Dual Style Tips
All Fabspeed products are expected to ship within one week of order, though timelines are often much quicker

Frequently Asked Questions

Will the RENNKRAFT Modular GTLM Exhaust fit my 992 GT3 or GT3 RS? Yes. The RENNKRAFT Modular GTLM Exhaust is built for the 992 Porsche 911 GT3 from 2022 and the GT3 RS from 2023, both with the 4.0L flat-six. It is a complete headers-to-tips system and installs as a bolt-on with no cutting or welding. Confirm your model year with us before ordering if your car is a 2025 or newer.
What is the difference between this and the headers on their own? This package is the complete system from the cylinder heads to the tips, including the headers, the HJS catalysts, the cast X-pipe and your choice of tips. The headers sold separately are just the front section and keep whatever rear section you already have. Buy the headers alone if you want to keep the factory muffler or run a cat-back system.
How much power does it add? Fabspeed’s testing shows 31 whp and 39 ft-lbs of torque at 4250 rpm, or 37 hp at the crank. More usefully, gains of over 20 whp hold from 6000 rpm all the way to redline rather than appearing only at one point on the curve. No ECU tune is required.
Will it drone? Yes. This package produces interior drone and Fabspeed says so plainly. It is built for maximum performance and a race-car voice, and everyday comfort is the trade. Owners who want the sound without the drone should look at Fabspeed’s cat-back systems for this chassis, which are engineered specifically to avoid it.
Do I lose much by running the catalysts instead of the competition pipes? Almost nothing. Fabspeed’s testing put the difference at one to two peak whp, because the 200 cell HJS catalysts are unusually large and free flowing for the factory location. The competition pipes exist mainly to protect the catalysts from endurance-racing abuse rather than to find meaningful extra power.
What tips come with it? You choose at checkout from matte carbon fiber, mirror polished stainless, brushed stainless, Satin Black or 90 degree race turndown tips. The turndown option aims the outlet down and is the one to take if your circuit enforces a sound limit, given how loud this package is in its other configurations.

About Fabspeed

Fabspeed Motorsport works out of a 26,000 square foot facility in Fort Washington, Pennsylvania, where design, engineering, dyno testing, street testing and race development all happen under one roof. The shop is a fixture for the Porsche Club of America, Ferrari, McLaren and Lamborghini crowds, and collaborates with race engine builders and tuners in Italy, Germany and the United States. Systems are fabricated from aerospace-grade austenitic stainless steel, titanium and carbon fiber, and every Fabspeed performance product is backed by the Fabspeed lifetime warranty.

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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Fabspeed RENNKRAFT Modular GTLM Exhaust Package for 992 Porsche 911 GT3 & GT3 RS [FS.POR.992GT3.GTLM.SCXXX]

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Fabspeed RENNKRAFT Modular GTLM Exhaust Package for 992 Porsche 911 GT3 & GT3 RS

Features

Specifications

Applications

Notes

Frequently Asked Questions

About Fabspeed

Reviews