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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://d911api.datadial.net/images/schemaLogo.png https://d911api.datadial.net/images/schemaLogo.png +443456003478 https://d911api.datadial.net Facebook Instagram
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EXHAUSTKIT911.2.1
Product Information
Product Information

The Switchable Valved Exhaust Kit “GT3” Style is a complete performance exhaust system designed for classic Porsche 911 models. Inspired by Porsche GT3 motorsport design, this system delivers enhanced exhaust flow, aggressive sound, and a performance-focused aesthetic.

Kit Contents:

x1 Exhaust Heat Exchangers (Pair) (3606001101)
x1 Exhaust Pre Silencer (3606501101/1)
x1 Rear Silencer With Valves "GT3" Style (3606001103)
x1 Exhaust Cross Over Pipe (3606001107)
x6 Exhaust Gasket Heat Exchanger To Cylinder Head (93011119112/1)
x6 Exhaust Barrell Nut (99908500103/1)
x6 Exhaust Hexagon Nut  (9000760250C)
x12 Exhaust Bolt (90007428203/1)
x2 Exhaust Gasket Heat Exchangers To Cross Over Pipe (93011119206/1)
x1 Exhaust Gasket Cross Over Pipe To Pre Silencer (93011119308/1)
x1 Exhaust Rear Silencer Gasket (91111119102/1)
x12 Exhaust Nut (90091009701/1)
x1 Switch Set For Sound Valves (9996001111)


Fits:
Porsche 911 3.2L 1984-89


What This Product Does:

  • Optimises exhaust gas flow with reduced backpressure
  • Enhances engine performance and throttle response
  • Produces a louder, sportier GT3-style exhaust note
  • Improves exhaust system efficiency
  • Provides a complete installation solution with included hardware     


Symptoms Of Wear Or Failure (Stock System):
  • Exhaust leaks from corroded or damaged joints
  • Rust or deterioration of pipes and silencers
  • Reduced engine performance due to restricted airflow
  • Excessive or irregular exhaust noise
  • Loose or failing mounting hardware Visible cracks or structural fatigue

Why Replacement Matters:
  • Restores and improves exhaust flow, boosting engine efficiency
  • Enhances driving experience with a more aggressive sound
  • Prevents exhaust leaks and structural issues
  • Reduces system weight compared to older OEM setups
  • Ensures long-term durability with upgraded materials
  • Ideal for restoration or performance upgrades, combining classic Porsche styling with motorsport-inspired performance  



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Related, superseded, cross reference or alternative numbers for comparison.

EXHAUSTKIT911.2.1
90007428203
93011119206
93011119308
91111119102
90091009701
9000760250C
9996001111
93011102200
93011102203
93021102501
PCG91121100
3606001101
3606001103
3606001107
93011119112
93021103301
93021103304

The product you are viewing cross references to these numbers