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Milltek GPF-Back Valved Exhaust System With Polished GT-115 Tailpipes. Porsche 718 Boxster / Cayman / GT4 2020>> ❭ SSXPO189
- Porsche Boxster GTS 718 4.0L PDK (400 Bhp) 01/2019>>
- Porsche Boxster Spyder / Sypder RS 718 4.0L 01/2019>>
- Porsche Boxster 25 Years 718 4.0L PDK (400 Bhp) 01/2020>>
- Porsche Cayman GTS 718 4.0L PDK (400 Bhp)
- Porsche Cayman GT4 718 4.0L / GT4 RS 718 4.0L
Fits:
Porsche 718 Cayman GT4 - Only for OPF/GPF equipped vehicles with Porsche's PDK transmission*
Porsche 718 Boxster Spyder - Only for OPF/GPF equipped vehicles with Porsche's PDK transmission*
Porsche 718 Cayman GTS 4.0L - Only for OPF/GPF equipped vehicles with Porsche's PDK transmission*
Porsche 718 Boxster GTS 4.0L - Only for OPF/GPF equipped vehicles with Porsche's PDK transmission*
Parts Assembly:
Pipe Diameter: 2.37" (60.30mm)
Tailpipe: 115mm GT115
NOTE: This system is compatible exclusively with 718 models that feature a petrol particulate filter (PPF) and Porsche's PDK transmission. PPFs were installed on 718 models manufactured after February 2020. If you are uncertain whether your vehicle is equipped with a PPF, please feel free to contact us with your VIN number for confirmation.
Why purchase a Milltek sport exhaust?
Sharper Throttle Response...
Enjoy quicker engine response with optimized airflow and enhanced performance, improving the overall driving experience.
Substantial Weight Savings...
Lighter than the original exhaust system, reducing overall weight for improved agility and handling.
Premium T304L Aircraft-Grade Stainless Steel...
Built from anti-magnetic, high-quality stainless steel that resists discoloration, offering excellent durability and performance.
Mandrel Bending for Better Gas Flow...
The system uses mandrel bending for full-flow bends, allowing exhaust gases to flow freely and boosting engine efficiency without sacrificing mid-range torque.
Lifetime Guarantee...
Milltek systems come with a lifetime guarantee for the original purchaser, offering peace of mind. (Excludes cats and flexes)
Designed and Manufactured in the UK...
Since 1983, Milltek has been designing and building exhaust systems with over 40 years of technical expertise, ensuring the highest quality and precision.
Ever-Expanding Range of Performance Exhausts...
Milltek offers a continuously expanding selection of exhaust systems tailored for performance vehicles like your Porsche.
--Pipe diameter equals 60.3mm / 2.37 inches.
--Please note that this product does not have official certification for use in Europe.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
SSXPO189
The product you are viewing cross references to these numbers
- Porsche 991.1 GT3 3.8L (475 Bhp) 2014-16
- Porsche 991.1 GT3 RS 4.0L (500 Bhp) 2015-16
- Porsche 991.2 Speedster 4.0L (510Bhp) 2019
- Porsche 991.2 GT3 4.0L (500 Bhp) / GT3 RS 4.0L (520 Bhp) 2017-19
- Porsche 991.2 GT2 RS 3.8L PDK (700 bhp) 2018-19
Bypass pipes for side mufflers.

Fits
Porsche 911 GT3 and GT3 RS (991.1 and 991.2 2014-2019)
RACETRACK USE ONLY
These components are designed and developed for racetrack use and to maximise the car's performance. They are not street legal and must be installed by professionals in the sector
Material: Stainless Steel 304
Replacement for Genuine muffler 991.111.048.81
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
3606609145
The product you are viewing cross references to these numbers
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