Milltek Sports Exhaust Rear Silencer Delete With Jet Carbon Trims. Porsche 718 Cayman GT4 / Boxster GTS 4.0L

9m trackday silenced exhaust tailpipe set. 

Fits:
Porsche 992 GT3 - 2021 to 2024
Porsche 992 GT3 RS - 2021 to 2024
Porsche 992 ST - 2021 to 2024
Porsche 992 Touring - 2021 to 2024

Designed as a direct fit, tailpipe replacement to fit to original OEM Porsche silencer. 

Constructed from 304 stainless steel  with a lifetime guarantee they will reduce sound at static by 4db or more.

Simple to bolt on using the provided hardware, no more than 20 minutes.

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Related reference numbers
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9GT251697SIL

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Akrapovic Slip-On Race Line (Titanium).

Fits:
Porsche 911 GT3 (992.1) 2021 - 2024
Porsche 911 GT3 Touring (992.1)  2021 - 2024
Porsche 911 GT3 RS (992.1) 2022 - 2025
Porsche 911 S/T (992.1) 2022 - 2025

The Akrapovič Slip-On Race Line (Titanium) is a precision-engineered exhaust system that brings out the true character and performance of the Porsche 911 GT3, GT3 Touring, GT3 RS and S/T 992.1. Crafted entirely from lightweight, high-grade 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 the 992 deserves and how it should have come from the factory. With motorsport-inspired engineering and a focus on lightweight performance, this system sets a new benchmark for track-focused upgrades.

Sound

The Akrapovič Slip-On Race Line delivers a +4.1 dB increase, enhancing the natural tone of Porsche’s iconic flat-six engine. It produces a smooth, rich sound at cruising speeds and transitions to a sportier, more aggressive note at higher revs. The housing of the exhaust valves – tailored to optimise gas flow – and the collectors in the muffler are cast in Akrapovič’s in-house foundry for precision and durability. This system ensures a dynamic and engaging exhaust note while eliminating intrusive droning, making it ideal for driving in all conditions.

Performance

The Akrapovič system for the 992 is engineered to maximise performance on the track by improving exhaust flow and reducing back pressure, all while achieving significant weight savings. This freer-flowing titanium design sharpens throttle response and enhances acceleration for a more engaging driving experience. No ECU remap is required when stock headers are retained and the Adapter Set is installed. However, for those upgrading to a full Evolution Line system with the Akrapovič Header Set, remapping the ECU is recommended to avoid Check Engine warning signals and ensure optimal performance.

Porsche 911 GT3 / GT3 Touring (992)
• Adapter Set (SS) with Stock Headers (P-CP034): +8.8 hp at 2,900 rpm, +17.8 ft-lb at 2,400 rpm, and 3.5 kg (20.7%) weight savings.
• Evolution Header Set (Titanium) (E-PO/T/7): +22.6 hp at 4,550 rpm, +26.0 ft-lb at 4,500 rpm, and an additional 3.8 kg weight reduction (28% lighter than stock headers).

Porsche 911 GT3 RS / S/T (992)
• Adapter Set (SS) with Stock Headers (P-CP034): +14.1 hp at 2,600 rpm, +28.1 ft-lb at 2,600 rpm, and 3.5 kg (20.7%) weight savings.
• Evolution Header Set (Titanium) (E-PO/T/9): +19.6 hp at 2,600 rpm, +36.4 ft-lb at 2,600 rpm, and an additional 3.8 kg weight reduction (28% lighter than stock headers).

These options give owners the flexibility to choose the setup that best matches their performance needs, whether retaining the factory headers for simplicity or upgrading to a full titanium system for maximum gains.

Design

Meticulously designed to match the Porsche 911’s iconic styling, the Slip-On Race Line combines functionality and aesthetics. The twin titanium tailpipes feature a sandblasted and coated finish, with six imprints on the inner sleeve to mirror the engine’s six cylinders. Akrapovič’s attention to detail extends to the in-house cast valve housings and muffler collectors, ensuring exceptional durability and performance. The lightweight construction is engineered to fit seamlessly within the car’s underbody, delivering both form and function for the ultimate track experience. Modern exhaust regulations often restrict the true character of performance cars, but Akrapovič’s Slip-On Race Line (Titanium) brings the Porsche 911 GT3 and GT3 RS to life. With its lightweight titanium construction, thrilling sound, and race-proven performance, this system is the ultimate upgrade for track enthusiasts. Designed and built for seamless integration, this is a hardware upgrade with no compromises.

This system fits also on vehicles equipped with Otto particulate filter (OPF).

If fitted with the stock headers in place, the system requires the P-CP034 Slip-On Race Line Adapter (SS) as a mandatory part for installation.

For clients intending to install the complete exhaust system, the E-PO/T/7 Evolution Header Set (Titanium) must be ordered separately.

Please notice that you may need to order new original Porsche V-clamps that fix the link pipes onto the headers, in case they are damaged during the removal of the stock exhaust.

Please note: that the product shown in the pictures may present the Slip-On Race Line (Titanium) in combination with the Evolution Header Set (Titanium) or in combination with the Slip-On Race Line Adapter (SS).

THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.

Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

S-PO

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Slip-On Race Line Adapter Set (SS)

Fits:
Porsche 911 GT3 (992.1) 2021 - 2024
Porsche 911 GT3 Touring (992.1)  2021 - 2024
Porsche 911 GT3 RS (992.1) 2022 - 2025
Porsche 911 S/T (992.1) 2022 - 2025

The Slip-On Race Line Adapter Set (SS) is a mandatory component when installing the Akrapovič Slip-On Race Line (Titanium) and retaining the stock headers. Constructed from high-grade stainless steel, this adapter ensures optimal integration of the Slip-On Race Line system, delivering precise fitment and performance. Advanced insulation is incorporated to protect surrounding components from excess heat.

Topologically CFD-optimised and meticulously tested, the adapter ensures the Slip-On Race Line (Titanium) exhaust system delivers its characteristic performance and sound. For vehicles without particulate filters, plug inserts and nuts from the Akrapovič installation kit must be used to disable backpressure sensors.

 This adapter set is required if stock headers are retained. For those installing the Akrapovič Evolution Header Sets (E-PO/T/7 or E-PO/T/9), the adapter is not required, as the full Evolution system integrates directly with the Slip-On Race Line exhaust.


For vehicles without particulate filters, plug inserts and plug nuts from the Akrapovič installation kit must be used to disable the backpressure sensors.

THIS PRODUCT DOES NOT MEET EMISSION COMPLIANCE REQUIREMENTS FOR STREET OR HIGHWAY USE.

Please note: This item is not a stock product. It is a special order part and once ordered with us is not subject to cancellation or return unless proven not fit for purpose or defected.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

P-CP034

The product you are viewing cross references to these numbers