Is this Akrapovic GT3 slip-on exhaust diffuser kit street legal?

Yes. The titanium muffler and tail pipe set are ECE type-approved for street use, and the carbon fiber diffuser carries its own separate ABE type-approval. Compliance depends on installing all components per Akrapovic's instructions — adding a Link Pipe Set or Evolution system afterward will void the ECE approval.

What's included with this kit?

This kit bundles Akrapovic's titanium slip-on muffler (S-PO/TI/10H), a matching titanium tail pipe set (TP-T/S/17/H), and a high-gloss carbon fiber rear diffuser (DI-PO/CA/6/G). All three components are homologated together for the 991.2 Porsche 911 GT3 and GT3 Touring.

How much weight and power does this exhaust add?

The titanium muffler reduces weight by 1.4 kg (16% lighter than stock) while adding up to 4.6 kW (6.3 hp) and 10.4 Nm (7.7 lb-ft) of torque at 4,200 rpm. The gloss carbon diffuser is a cosmetic addition and doesn't change these figures.

Does this fit the Porsche 911 GT3 RS?

No. This kit is designed for the standard 911 GT3 and GT3 Touring (991.2, 2018–2019). The GT3 RS requires a different Akrapovic tail pipe set. If you drive a GT3 RS, contact us before ordering to confirm the correct part for your car.

How long does installation take?

Plan for roughly 260 minutes to install the slip-on muffler and tail pipe set, plus another 90 minutes for the carbon fiber diffuser. We recommend professional installation to ensure proper fitment and to keep the system's ECE compliance valid.

Description

Additional Info

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BP PRICING DIFFERENCE

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Description

Akrapovic Titanium Slip-On Line w/ Tail Pipe Set & Carbon Fiber Diffuser for 991.2 Porsche 911 GT3 & GT3 Touring

The Akrapovic Porsche 911 GT3 Exhaust is a hand-built titanium slip-on line that brings race-developed Akrapovic engineering to the Porsche 911 GT3. By replacing the heavy factory exhaust it removes roughly 16% of the system weight, sharpening throttle response and improving balance over the rear axle. On the dyno it frees up to 6hp and 8ft-lbs while transforming the car’s voice into the deep, layered Akrapovic tone that builds with revs and stays drone-free at a cruise. Precision-welded and engineered as a direct bolt-on, it is the definitive exhaust upgrade for the 911 GT3.

Features

ECE type-approved for street use — a genuine bolt-on upgrade that doesn’t sacrifice road legality
Titanium slip-on muffler paired with a matching titanium tail pipe set and a high-gloss carbon fiber rear diffuser
Refined, deeper exhaust note without the raspy character of Akrapovič’s track-only Race Line systems
Direct bolt-on installation using factory mounting points

Specifications

Weight savings: 1.4 kg (16% lighter than stock)
Power gain: up to 4.6 kW (6.3 hp) at 4,200 rpm
Torque gain: up to 10.4 Nm (7.7 lb-ft) at 4,200 rpm
Diffuser weight: 0.85 kg (1.9 lb) — 48.5% lighter than the factory diffuser

Applications

Porsche 911 GT3: 991.2 | 2018 to 2019 | 4.0L Flat-6
Porsche 911 GT3 Touring: 991.2 | 2018 to 2019 | 4.0L Flat-6

Notes

Each Akrapovic system is made to order. Unless a listing notes in-stock availability, your order is placed with the factory and we confirm the current lead time before it ships.
Manufacturer installation instructions: download the PDF.
Fitment is specific to the 991.2 platform and years listed above. For any questions on fitment or specifications, Contact us and we will confirm the correct part for your build.
Diffuser carries its own separate ABE type-approval (German StVZO) as a street-legal cosmetic upgrade

Frequently Asked Questions

Is this Akrapovic GT3 slip-on exhaust diffuser kit street legal?
Yes. The titanium muffler and tail pipe set are ECE type-approved for street use, and the carbon fiber diffuser carries its own separate ABE type-approval. Compliance depends on installing all components per Akrapovic’s instructions — adding a Link Pipe Set or Evolution system afterward will void the ECE approval.
What’s included with this kit?
This kit bundles Akrapovic’s titanium slip-on muffler (S-PO/TI/10H), a matching titanium tail pipe set (TP-T/S/17/H), and a high-gloss carbon fiber rear diffuser (DI-PO/CA/6/G). All three components are homologated together for the 991.2 Porsche 911 GT3 and GT3 Touring.
How much weight and power does this exhaust add?
The titanium muffler reduces weight by 1.4 kg (16% lighter than stock) while adding up to 4.6 kW (6.3 hp) and 10.4 Nm (7.7 lb-ft) of torque at 4,200 rpm. The gloss carbon diffuser is a cosmetic addition and doesn’t change these figures.
Does this fit the Porsche 911 GT3 RS?
No. This kit is designed for the standard 911 GT3 and GT3 Touring (991.2, 2018–2019). The GT3 RS requires a different Akrapovic tail pipe set. If you drive a GT3 RS, contact us before ordering to confirm the correct part for your car.
How long does installation take?
Plan for roughly 260 minutes to install the slip-on muffler and tail pipe set, plus another 90 minutes for the carbon fiber diffuser. We recommend professional installation to ensure proper fitment and to keep the system’s ECE compliance valid.

About Akrapovic

Akrapovic is a manufacturer of premium exhaust systems for motorcycles and performance cars, recognized globally for its use of advanced technology and high-quality materials. The company’s state-of-the-art facilities in Slovenia include an in-house titanium foundry and metallurgical laboratory, giving it full control over the materials and processes behind every component it produces. With over 1,500 employees and distribution across more than eighty countries, Akrapovic’s roots in motorsport run deep. The knowledge gained from supporting MotoGP, WorldSBK, MXGP, DTM, and other racing programs feeds directly into the street and performance car products it builds, including the Titanium Slip-On Line for the Porsche 911 GT3.

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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Akrapovic Titanium Slip-On Line w/ Tail Pipe Set & Carbon Fiber Diffuser for 991.2 Porsche 911 GT3 & GT3 Touring [S-PO/TI/10H-TP-DI]

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Akrapovic Titanium Slip-On Line w/ Tail Pipe Set & Carbon Fiber Diffuser for 991.2 Porsche 911 GT3 & GT3 Touring

Features

Specifications

Applications

Notes

Frequently Asked Questions

About Akrapovic

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