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Akrapovič 911 gt3 (991. 1) slip-on line exhaust
Akrapovič 911 gt3 (991. 1) slip-on line exhaust - image 2
Akrapovič 911 gt3 (991. 1) slip-on line exhaust - image 3

Akrapovič 911 GT3 (991.1) Slip-On Line Exhaust

£7,766.58

Installation Instructions
An installation guide is available for this product, download here.
Technical Data Sheet
Technical information for this product, download here.
SKU: AKR-991GT3-SO Categories: , , , , PP-PC-20

Akrapovič 911 GT3 (991.1) Slip-On Line Exhaust

Akrapovič’s Slip-On Line for the Porsche GT3 offers the ideal entry into the world of performance exhaust tuning. Constructed from high-grade titanium, this system delivers a notable reduction in weight, contributing to enhanced handling and agility for the GT3. Designed for easy installation onto the original exhaust system, the Slip-On Line increases the car’s power while meeting ECE specifications.

Key Features:

  • Titanium Construction:
    Lightweight titanium reduces overall weight, improving both performance and fuel efficiency while maintaining durability under high temperatures.
  • Distinctive Akrapovič Sound:
    The Slip-On Line amplifies the GT3’s naturally aspirated engine, delivering a deep, sporty sound that is both unique and exhilarating, without excessive drone.
  • Improved Performance:
    The system increases power output, making the GT3 even more dynamic, with noticeable improvements in throttle response and overall driving enjoyment.
  • Eye-Catching Double Round Tailpipes:
    The system is finished with two double round titanium tailpipes, enhancing the visual appeal and giving the rear of the car a more aggressive, track-inspired look.

Optional Carbon-Fibre Rear Diffuser:

For those seeking an even more exclusive aesthetic, Akrapovič offers an optional carbon-fibre rear diffuser. This handcrafted piece is made from premium materials, designed to complement the titanium tailpipes of the Slip-On system and further accentuate the GT3’s rear profile. It adds a refined, yet sporty, edge to the car, making it stand out even when stationary.

This combination of performance, sound, and visual upgrades makes the Slip-On Line a highly desirable modification for Porsche GT3 owners looking to enhance their vehicle’s driving experience and presence on the road.

Exhaust Data

Unit Akrapovič Max gain
Max. power kW 348.6 / 8400 rpm + 4.5 / 7800 rpm
HP (m) 474 / 8400 rpm + 6.1 / 7800 rpm
HP (i) 467.5 / 8400 rpm + 6 / 7800 rpm
Max. torque Nm 428.9 / 6400 rpm + 4.9 / 8100 rpm
lb-ft 316.3 / 6400 rpm + 3.6 / 8100 rpm
Weight kg 8.3 – 1.1
lb 18.3 – 2.4
% – 11.7
Inst. time min 120
Brand

EC Approved

Yes

AKR-991GT3-SO Confirmed Fitment

Please note, this information is a combination of supplier provided compatibility data and our workshop expertise. While every effort has been made to ensure the accuracy of this information Progressive Parts Ltd are not liable for abnormalities or inaccurate data. Customers are wholly responsible for checking fitment for their vehicle. More information is available from our Terms & Conditions

PORSCHE (1 Model)
911 (991) 3.8 GT3 (MA1.75) | 475hp
Petrol 3799cc | Coupe | 2013 - 2017

Stock at Progressive Parts

Delivery timescales are given as estimates in good faith, but cannot be taken as precise or exact information. We highly advise against booking installation/workshop time or engaging in preparatory work until you've received and inspected the goods.

What do our stock statuses mean?

1+ IN STOCK in green stock is readily available in one of our warehouses for express delivery (at the time of viewing).

LOW STOCK in green means we're running low! 1 or 2 left on the shelf so act fast. Over evenings, weekends and bank holidays this stock can move quickly so please bear this in mind.

0 IN STOCK in blue means our primary warehouse does not have unallocated stock, but our UK partners do. Often these can be shipped quickly and efficiently. You'll be notified via the Track My Order page if further delays are unavoidable.

MADE TO ORDER in blue means we've partnered with a supplier which primarily makes their products to order. It's not on our shelf, but your order goes into production immediately.

0 IN STOCK in orange means everybody we work with is unfortunately out of stock. Stock is not available in the UK. The best course of action is to place an order to create an allocation from the next batch arriving.

OUT OF STOCK in red. This product is unavailable to order, for whatever reason we're unable to obtain stock or there is an issue with supply/lead times.

We're tuners too!

Our staff are car enthusiasts, we understand the need for speed... This includes getting your orders out the door as quickly and securely as possible!

In some instances, extended lead times are unavoidable. This is as labour-intensive and frustrating for us as it is for you, please know we are doing our best to facilitate your modification goals. Abuse of our staff or systems will not be tolerated.

Thank you, Team PP

In the words of the Vehicle Standards Agency (VCA), type approval provides "confirmation that production and samples of a design will meet specified performance standards".

For emissions components this encompasses noise, emissions and balanced back pressure, which have a strong influence on maintaining engine performance (power), and fuel efficiency. Type approval ensures that an aftermarket component will reach, or exceed the performance standard of the corresponding OE part.

Type-approval then, is a certain guarantee that an end user will receive a product of OE equivalent performance attributes.

Products on the Progressive Parts website that meet this approval will be clearly marked or labelled EC or ECE approved.