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Grail Porsche 911 GT3/GT3 RS Cat Back Exhaust System (991.1) - R44 Performance
Grail Porsche 911 GT3/GT3 RS Cat Back Exhaust System (991.1) - R44 Performance

Grail Automotive

Grail Porsche 911 GT3/GT3 RS Cat Back Exhaust System (991.1)

Sale price£4,400.00GBP
SKU: GRAIL-9911-GT3RS-CATBACK-NOECE

IN STOCK WITH SUPPLIER. DESPATCH IN 5-7 DAYS.

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Pickup available at R44 Performance HQ Usually ready in 4 hours

Grail Porsche 911 GT3/GT3 RS Cat Back Exhaust System (991.1)

No ECE Type Approval / No Tips (Use OEM Tips)

R44 Performance HQ

Pickup available, usually ready in 4 hours

Latif House, First Way, Wembley
Unit 4
London HA9 0JD
United Kingdom

+442080040441

The Grail stainless steel upgraded exhaust system for the 991.1 Porsche 911 GT3 and GT3 RS produces an incredible and unmistakeable sound. It's the sort of transformation that gives you goosebumps every time you start your engine.

The use of highly effective silencers enables maximum volume and wonderful engine sound. When the valves are closed, the exhaust gases flow through the rear backbox to allow the system to remain quiet for daily driving. When the valves are open, the rear backbox is completely bypassed for maximum noise!

Flow has been improved over the factory system due to a larger pipe diameter of 3 inches (76mm).

SPECIFICATION

- Hand-crafted in Germany from high-quality L304 stainless steel
- 76mm exhaust pipe diameter
- Street legal and registration-free thanks to optional ECE approval
- 2mm wall thickness
- Significant weight savings compared to the series
- Retains OEM Porsche valves
- Massively improved sound with the flap open and closed
- Set-up suitable for racetracks
- 100% handmade using the TIG welding process

PERFORMANCE GAINS

On the dyno, our 991.1 GT3 RS made the following performance gains with the non-ECE system:

Power: +10bhp
Torque: +13Nm

COMPATIBILITY

- Porsche 911 GT3 Coupe (991.1)
- Porsche 911 GT3 RS Coupe (991.1)

DOES NOT fit 991.2 generation vehicles.

PLEASE NOTE

  • Orders with both in-stock and backorder or out-of-stock products will be dispatched once all products are available to ship together.
  • Contact our sales team if you want your parts fitted to your vehicle at our London workshop.
  • Shipping estimates are based on courier delivery times and don't include time to despatch from our warehouse.