Akrapovič Slip-On Line (Titanium) — Porsche 911 GT3 / GT3 Touring (991.2)

Upgrade your Porsche 911 GT3 or GT3 Touring (991.2) with the Akrapovič Slip-On Line Titanium Exhaust System.

Designed as a premium upgrade to the original Porsche exhaust system, this lightweight titanium slip-on system delivers increased performance, reduced weight and the unmistakable Akrapovič exhaust character.

Manufactured from high-grade titanium, the system is engineered specifically for the Porsche 911 GT3 and GT3 Touring (991.2), combining lightweight construction with refined exhaust performance and an enhanced exhaust note.

Unlike the Race Line version, this Slip-On Line is ECE approved in its approved configuration.

Key Features

• Genuine Akrapovič performance exhaust
• Slip-On Line system
• Designed for Porsche 911 GT3 / GT3 Touring (991.2)
• 2018 model year application
• High-grade titanium construction
• Lightweight construction
• Two double round tailpipes
• Designed to improve exhaust performance
• Enhanced exhaust sound
• Weight reduction compared with the OEM system
• Designed to install onto the original Porsche exhaust system
• ECE approved in the approved configuration
• Can be upgraded with additional Akrapovič exhaust components
• Professional installation recommended

Vehicle Fitment

Porsche 911 GT3 / GT3 Touring (991.2)

• Model year: 2018
• Chassis: 991.2
• Engine: Porsche 4.0L naturally aspirated flat-six
• GT3
• GT3 Touring

Performance

Akrapovič's testing shows a maximum power increase of:

+4.6 kW / approximately +6.3 HP

at approximately 4,200 rpm.

Maximum torque improvement is listed as:

+10.4 Nm / approximately +7.7 lb-ft

at approximately 4,200 rpm.

The system is designed to enhance the performance characteristics of the Porsche 911 GT3 while maintaining the high-revving character of the naturally aspirated 4.0L flat-six engine.

Weight Reduction

The titanium construction provides a significant reduction in weight compared with the original Porsche exhaust system.

The Akrapovič system weighs approximately:

7.24 kg / 16.0 lb

The manufacturer lists a weight reduction of approximately:

1.4 kg / 3.0 lb

compared with the OEM system, representing approximately 16.1% weight savings.

Reducing weight from the rear of the vehicle contributes to the focused performance characteristics of the 911 GT3.

Exhaust Sound

The Slip-On Line is engineered to give the Porsche 911 GT3 a more distinctive and engaging exhaust character.

The high-grade titanium construction and Akrapovič exhaust design enhance the sound of the naturally aspirated flat-six while maintaining the refined character expected from a premium Porsche performance exhaust.

The result is a more pronounced and sporty exhaust note without requiring a complete replacement of the factory exhaust system.

Upgrade Options

The Slip-On Line can be used as the foundation for a more extensive Akrapovič exhaust configuration.

It can be combined with additional Akrapovič components, including:

• Link Pipe Set (Titanium) — retains the stock headers while removing the stock side mufflers
• Evolution Race Header Set — provides a more performance-oriented non-valved configuration
• Evolution Header Set with Side Mufflers and Valves — allows for a more comprehensive Akrapovič exhaust configuration

Important: The original ECE type approval is no longer valid when the system is upgraded with the optional link pipes or Evolution components.

Rear Diffuser

Akrapovič also offers an optional carbon-fibre rear diffuser designed to complement the exhaust system.

The diffuser is available in different finishes and provides an additional visual upgrade for the rear of the 991.2 Porsche 911 GT3.

What Is Included

The Slip-On Line includes the titanium exhaust components and associated mounting hardware supplied by Akrapovič.

Important: The mandatory TP-T/S/17/H tailpipe set is sold separately and must be purchased separately.

Please confirm the selected tailpipe configuration before ordering.

ECE Approval & Street Use

ECE Approved

The Akrapovič Slip-On Line is listed as ECE approved in its approved configuration.

This approval applies to the system in its specified configuration. If the exhaust is modified or upgraded with additional components such as the optional link pipe or Evolution headers, the original ECE type approval is no longer valid.

Customers should always verify applicable federal, provincial/state and local regulations before purchasing or installing modified exhaust components.

Sound Kit

Akrapovič also offers an optional Sound Kit for compatible configurations.

The Sound Kit allows the driver to control the exhaust sound wirelessly and provides different sound characteristics through the available Akrapovič control system.

Availability and compatibility should be confirmed before ordering.

Important Information

This product is the Akrapovič Slip-On Line (Titanium) for the 2018 Porsche 911 GT3 / GT3 Touring (991.2).

It is a Slip-On Line system, not a complete Evolution exhaust system.

The mandatory TP-T/S/17/H tailpipe set is sold separately.

Before ordering, customers should confirm:

• Porsche 911 GT3 or GT3 Touring
• 991.2 chassis
• 2018 model year
• Required tailpipe configuration
• Original exhaust configuration
• Intended exhaust configuration after installation