We are offering some specials on the Akrapovic exhaust systems for the 991.2 GT3!

Please PM or email sales@supremepower.com or call us at (714)632-1951 for special RENNLISTer pricing specials!

A pioneer in its field, Akrapovič is widely recognised as a highly innovative materials technology company. The brand is synonymous with the highest level of design, performance enhancementand the creation of an unmistakable deeply resonant exhaust sound. The company’s products are designed and manufactured for motorcycles and performance cars by a passionate and highly-skilled workforce of over 1000 employees using the latest technology, processes and finest materials. The Racing R&D department works with dozens of racing teams. Over 100 world champions have already relied on Akrapovič exhaust systems. And this is just the beginning of a long exciting ride.

Akrapovič’s Slip-On Race Line represents the first step in the exhaust system tuning process and the muffler can easily be installed onto the Porsche GT3's original system. Built from hi-grade titanium and finished with two eye-catching double round tailpipes, this entry system makes the GT3 more powerful and lighter, and gives the car that unique, sporty Akrapovič sound.

**The mandatory tail pipe set needs to be ordered separately.**

The Slip-On Race system can be optionally combined with Link Pipe Set (Titanium) that retains stock headers and removes stock side mufflers, or it can be upgraded into a full Akrapovič exhaust system, either with combining it with Evolution Race Header Set without valves or Evolution Header Set with side mufflers and valves.

The look of this system can be further enhanced with the addition of the superbly handcrafted high-quality optional carbon- fibre rear diffuser in matte and high gloss finish to give even more exclusivity to the Porsche 911 GT3 (991.2).

Top the system off with a pair of eye-catching double round tailpipes, made of high-grade titanium.

Evolution Race Header Set converts the slip-on system into a full system, built for the track and gives the Porsche GT3 the extra performance to match. Handcrafted titanium headers incorporate 100 cpsi sports catalytic convertors and titanium flanges—cast in Akrapovič’s own foundry. The system offers a perfect power curve right from 3,000 rpm to the very top of the power band, designed to continually increase performance as the revs rise. Along with improved torque and the maximum weight savings to enhance handling, adding the Evolution Race Header (Set) will have the car performing like a true cup racer—with a deep, loud, and powerful Akrapovič racing sound to match its performance.

When installing Akrapovič aftermarket optional link pipes with sports catalytic converters or without catalytic converters, which are developed for use on closed tracks only, remapping the ECU is mandatory.

When installing Akrapovič aftermarket exhaust system that was developed for use on closed tracks, we recommend remapping the ECU in order to prevent potential »check engine light« warning signals.

Evolution Header Set converts the slip-on system into a full system designed to give noticeably increased power at higher revs. Handcrafted titaniumheaders incorporate 100 cpsi sports catalytic convertors and side mufflers—all designed to increase power and torque—the Evolution Header Set utilizes integrated catalytic convertors and the functionality of the exhaust valves to deliver an out-and-out attack on the senses. With the valves in the open position, it delivers a sportier and hard-hitting sound, but also has the option of a lower sound level when the valves are closed, perfect for use in more everyday locations. Offering an increased weight savings in the area behind the engine and the rear axle, the reduction will enhance the handling and improve performance.

When installing Akrapovič aftermarket optional link pipes with sports catalytic converters or without catalytic converters, which are developed for use on closed tracks only, remapping the ECU is mandatory.

When installing Akrapovič aftermarket exhaust system that was developed for use on closed tracks, we recommend remapping the ECU in order to prevent potential »check engine light« warning signals.

Adding the link pipe set is the second step in the exhaust tuning process. Combination with Slip-On Race Line retains the original Porsche GT3 exhaust manifold, utilizing the existing integrated catalytic convertors. The perfectly balanced titanium slip-on system and superbly fitting link pipes are all set off with a pair of beautiful titanium tailpipes. Developed primarily for track use, the Slip-On Race Line with Link Pipe Set (Titanium) increases power and torque levels and with the huge reduction in weight in the area behind the engine and the rear axle (in comparison to the original system) handling is improved to make the car and exhaust work in perfect harmony.

Designed and constructed exclusively for the Porsche 911 GT3 (991) and GT3 RS (991), the Akrapovič dB reducer (Titanium) is aimed at driving enthusiasts who need to keep the noise of the exhaust within approved levels during track-day use. Made from high-grade lightweight titanium, the dB reducer works like an additional muffler to allow extra expansion of the exhaust gases. It is easily fitted by simply removing the Akrapovič tailpipe set and then mounting the dB reducer in place. After installation, the Akrapovič dB reducer (Titanium) reduces dynamic sound levels* by approximately two or three decibels** while still retaining the unique Akrapovič sound and character. It is designed to fit and reduce the measured dynamic sound levels of all Akrapovič systems for the Porsche 911 GT3 (991) and GT3 RS: the Slip-On Line (Titanium), Evolution Line (Titanium), Sports Cup Line (Titanium), and Evolution Race Line (Titanium). The Akrapovič dB reducer (Titanium) is also totally compatible with the optional Akrapovič carbon-fibre diffuser, which is available for the Porsche 911 GT3 (991).
The Akrapovič dB reducer (Titanium) fits also to the stock exhaust system of the 911 GT3 (991) and GT3 RS (991).

*Dynamic sound levels apply to a moving vehicle and not the volume from a static vehicle.
**Noise reduction value is relative (or may vary) due to various noise-measuring methods used and external conditions at different racetracks.

When installing Akrapovič aftermarket optional link pipes with sports catalytic converters or without catalytic converters, which are developed for use on closed tracks only, remapping the ECU is mandatory. When installing Akrapovič aftermarket exhaust system that was developed for use on closed tracks, we recommend remapping the ECU in order to prevent potential »check engine light« warning signals.

I wonder how a set of long tube headers would sound with that Akrapovic split-on Race center?

How much weight saved with the Center slip on ? Akrapovic site says 10 kgs but other say only 5 kgs? Also does the full evolution valves system save another 35 kgs (akrapovic website) ? I am seriously considering this system for GT3 Touring thank you