do not press the back button…
Your Vehicle
Porsche // Panamera 971 MK1 (2017-2020) // 971.1 Panamera 4S V6 3.0L 4WD (440 Hp) 2017-20
Enter your VAT number here and click Verify:
Your details have been verified. VAT number registered to:
,
.
Your order will now be zero rated for VAT purposes. We reserve the right to verify these details after your order request has been made and reinstate VAT if required.
Your VAT details were not recognised or were invalid. Your VAT number must be matched to your Billing Country as specified above. This is currently specified as . You do not need to enter the country code part of your VAT number as this has already been selected in your billing address details above.
The VAT number checking service is currently offline. Please supply your VAT details within the comments or special instructions field below and we will apply a VAT discount after placing your order request.
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
The Switchable Valved Exhaust Kit “1 IN 1 OUT” Style is a complete OEM-quality exhaust system designed for classic Porsche 911 models. Featuring a single inlet, single outlet configuration with an integrated valve system, this setup allows drivers to switch between a refined, quieter exhaust note and a more aggressive, performance-focused sound.
Kit Contents:
x1 Exhaust Heat Exchangers (Pair) (3606001101)
x1 Exhaust Pre Silencer (3606501101/1)
x1 Rear Silencer With Valves "1 IN 1 OUT" (3606001105)
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:
- Provides switchable exhaust sound control (quiet vs sport mode)
- Maintains balanced exhaust flow with 1-in-1-out configuration
- Enhances driving experience with adjustable sound levels
- Supports efficient exhaust gas flow Ensures complete installation with included mounting hardware
Symptoms Of Wear Or Failure (Stock System):
- Exhaust leaks from corroded or damaged components
- Rust or deterioration of silencers and pipes
- Restricted exhaust flow reducing engine performance
- Excessive or inconsistent exhaust noise
- Loose or failing mounting hardware
- Lack of sound control compared to modern valved systems
Why Replacement Matters:
- Restores proper exhaust function and flow
- Allows adjustable sound levels, combining comfort and performance
- Enhances driving enjoyment with on-demand sport exhaust tone
- Eliminates leaks and structural weaknesses
- Improves durability with high-quality materials
- Ideal for restoration or upgrade, adding modern functionality to classic Porsche models
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
EXHAUSTKIT911.2.2
The product you are viewing cross references to these numbers
This kit is comprised of the following items:
