Please wait… 
Please wait while we process your order,
do not press the back button… 
Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram
Check vehicle fitment
3606001103
Product Information
Product Information
DesignTek Sport Exhaust muffler / silencer rear box, with valves
with dual center outlet pipes "GT3" style

The DesignTek 'GT3 style' sports exhaust muffler with valves is a performance-focused upgrade designed for classic Porsche 911 models from 1975 to 1989. Combining modern exhaust technology with iconic GT3-inspired styling, this rear silencer enhances both the sound and driving experience of air-cooled 911s.

Fits:
Porsche 911 1975 - 1989

Please note: This system does not come with valve control system. You can add it to the basket afterwards.

This exhaust system features an integrated valve-controlled design, allowing you to switch between a more refined tone and a louder, more aggressive sports exhaust note. When open, the system delivers a deeper, freer-flowing sound with reduced backpressure, while the closed setting provides a more controlled, road-friendly exhaust tone.

Constructed using high-quality materials and precision engineering, this DesignTek muffler is built to withstand the high temperatures and demands of air-cooled engines. Its free-flowing internal design improves exhaust gas evacuation, which can contribute to improved engine responsiveness and efficiency. Performance exhaust systems like this are designed to reduce restriction and enhance airflow, helping engines breathe more effectively.

The GT3-style design brings a modern motorsport-inspired appearance to classic 911 models, typically featuring a more aggressive rear-end look compared to standard silencers. Designed as a direct-fit upgrade, it integrates with existing exhaust components for straightforward installation.

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Related, superseded, cross reference or alternative numbers for comparison.

3606001103
93011102200
93011102203
93011104300
93011104301
93011104303

The product you are viewing cross references to these numbers
Related products