Porsche 911 GT3/ GT3 RS (991.2) | Slip-On Line (Titanium)

Akrapovič is the global leader in high-performance exhaust systems, proudly designed and manufactured in Slovenia. Renowned for their unmistakable sound, race-proven engineering, and commitment to innovation, Akrapovič is trusted by top manufacturers, motorsport teams, and enthusiasts worldwide. A materials technology company at its core, Akrapovič invests extensively in research and development to deliver a deep, rich exhaust note alongside improved performance and reduced weight.

Akrapovic Performance Exhaust — S-PO/TI/10H

The Akrapovič Slip-On Line (Titanium) is a precision-engineered exhaust system that brings out the true character and performance of the Porsche 911 GT3, GT3 Touring, and GT3 RS (991.2). Crafted entirely from lightweight titanium, this system is designed to enhance every aspect of the driving experience—from sound and performance to weight savings and aesthetics. More than just an exhaust, it’s the finishing touch these high-performance vehicles deserve and how they should have come from the factory.

Sound

The Slip-On Line transforms the auditory experience of the Porsche 911, unlocking the full potential of its naturally aspirated flat-six engine. At lower revs, the system delivers a rich, sporty tone that grows into a race-inspired roar at higher speeds. The titanium muffler design features Akrapovič’s specialised internal construction, including double-round tailpipes and optional link pipes, to ensure a dynamic exhaust note without any intrusive droning, both on and off the track.

Performance

The Akrapovič Slip-On Line (Titanium) is designed to optimise the performance of the Porsche 911 GT3, GT3 Touring, and GT3 RS (991.2). By reducing backpressure and improving gas flow, the system allows the engine to operate more efficiently, resulting in improved throttle response and stronger acceleration. Akrapovič’s dyno testing confirms measurable gains of +6.3 hp at 4,200 rpm and +7.7 ft-lb of torque at 4,200 rpm. The titanium construction reduces weight by 1.4 kg (16.1%), significantly enhancing agility, cornering precision, and overall handling. These benefits are achieved without the need for ECU remapping, ensuring seamless installation and compatibility with the GT3’s factory setup.

Design

The Slip-On Line’s titanium construction is engineered to the highest standards, with components such as the double-round tailpipes hand-finished to ensure flawless fitment and style. The system integrates seamlessly with the Porsche’s factory diffuser, or can be paired with an optional carbon fibre rear diffuser available in matte or high-gloss finishes, further enhancing the vehicle’s aggressive aesthetics. Precision craftsmanship and attention to detail ensure the system delivers both form and function.

Modern emissions and noise regulations all too often stifle the sound and performance of today’s sports cars. Akrapovič’s Slip-On Line addresses this, restoring the visceral sound and responsiveness that define the 911 GT3 as a true driver’s car. Designed and built for seamless integration, this is a hardware upgrade with no compromises.

Compliance, Compatibility, and Warranty

The Akrapovič Slip-On Line (Titanium) is fully ECE type-approved, ensuring compliance with emissions and noise regulations for road use. No ECU remapping is required ensuring seamless integration with the vehicle’s existing systems.

Warranty: Backed by Akrapovič’s 2-year product warranty.

Compatible Models:

• Porsche 911 GT3 / GT3 Touring (991.2) – 2018–2019
• Porsche 911 GT3 RS (991.2) – 2018–2020

Fitment Notice:

• For GT3 RS 991.2: When combining the Slip-On Line system with optional carbon fibre diffuser DI-PO/CA/7/G, you must use tail pipe set TP-T/S/17/H or TP-T/S/17.

Mandatory and Optional Components

Mandatory Components:

• Tail Pipe Set (Titanium): GT3 / GT3 Touring – TP-T/S/17/H
• Tail Pipe Set (Titanium): GT3 RS – TP-T/S/19/H

Optional Components:

• Link Pipe Set: L-PO997GT3CSET –The first step in upgrading the Slip-On Line, this titanium link pipe further reduces backpressure for sharper throttle response, improved acceleration, and enhanced exhaust flow. Retaining the factory exhaust manifold and catalytic converters, it delivers significant weight savings behind the rear axle, improving handling and agility while introducing an even sportier, track-ready tone.
• Evolution Header Set (Titanium): E-PO/T/4 – A step further in performance, this system integrates catalytic converters and exhaust valves for dynamic sound versatility. The valves allow for an aggressive, high-performance tone at full throttle and a subdued, refined note for everyday driving. It increases power and torque at high revs while further reducing weight, optimising the Porsche’s handling and precision.
• Evolution Race Header Set (Titanium): E-PO/T/5 – The ultimate track upgrade, this handcrafted titanium system includes 100 cpsi sports catalytic converters for maximum power and torque gains across the rev range. It delivers a bold, race-inspired exhaust note and the lightest configuration for unparalleled handling and acceleration—turning the Porsche into a true cup racer.
• Akrapovič dB Reducer (Titanium) TP-PO991GT3/BOX – The Akrapovič dB reducer lowers sound levels by 2–3 dB without compromising the system’s signature character. Made from lightweight titanium, this additional muffler expands exhaust gases to reduce dynamic noise while maintaining the Akrapovič tone. Easily installed in place of the tailpipe set, it works with all Akrapovič systems, including optional carbon fibre diffusers, for seamless compatibility.
• Rear Carbon Diffuser (Matte or High-Gloss) – Available in matte or high-gloss finishes, this diffuser complements Akrapovič’s exhaust systems with a striking visual enhancement. Designed to reduce weight and integrate seamlessly with the 911, it adds a motorsport-inspired aesthetic while supporting improved aerodynamics.