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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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EXHAUSTKIT911.2.4
Product Information
Product Information

The Switchable Valved Exhaust Kit “1 IN 2 OUT” Style with Double Walled Slash Cut Tailpipes is a complete OEM-quality performance exhaust system designed for classic Porsche 911 models.

Kit Contents:

x1 Exhaust Heat Exchangers (Pair) (3606001101)
x1 Exhaust Pre Silencer (3606501101/1)
x1 Rear Silencer With Valves "1 IN 2 OUT" Style (3606001104)
x1 Exhaust Tailpipe Double Walled Slash Cut (3606001108)
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:

  • Provides switchable exhaust sound control (quiet vs sport mode)
  • Improves exhaust flow with a 1-in, 2-out configuration
  • Enhances engine performance and responsiveness
  • Delivers a deeper, sportier exhaust tone when valves are open
  • Features double-walled slash-cut tailpipes for premium styling and durability
  • Ensures correct fitment and alignment with complete mounting hardware     

Symptoms Of Wear Or Failure (Stock System):
  • Exhaust leaks from corroded or damaged components
  • Rust or deterioration of pipes, silencers, or tailpipes
  • Restricted airflow leading to reduced engine performance
  • Excessive or irregular exhaust noise
  • Loose or failing mounting hardware
  • Worn or damaged exhaust tips affecting appearance  

Why Replacement Matters:

  • Restores and improves exhaust flow, enhancing engine efficiency
  • Provides adjustable sound levels, combining comfort and performance
  • Enhances driving experience with on-demand exhaust tone
  • Upgrades vehicle appearance with premium slash-cut tailpipes
  • Eliminates leaks and structural weaknesses
  • Ensures long-term durability with high-quality materials
  • Adds modern functionality to classic Porsche models while maintaining character  



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Related, superseded, cross reference or alternative numbers for comparison.

EXHAUSTKIT911.2.4
90007428203
93011119206
93011119308
91111119102
90091009701
9000760250C
9996001111
93011102200
93011102203
93021102501
PCG91121100
3606001101
93011119112
93021103301
93021103304
3606001104
3606001108

The product you are viewing cross references to these numbers