Exhaust system

Due to the ever more demanding noise reductions across the circuits in Europe, DUEL developed a new exhaust system that can be driven with or without an exhaust damper and still gives an even better power output than the factory megaphones.
This resulted on some points in a power increase of 35% against the best silent race or aftermarket exhaust we’ve tested on our dyno.
The DUEL exhaust system comes with damper and open exhaust and all of the brackets to install it.

Solex carburettors

All the historic ( 1965 ) Porsche drivers are familiar with the problems of the Solex overflow carburettor.
On race or rally engines these carburettors are notorious for their bad carburetion and therefore bad fuel consumption. DUEL solves this problem by modifying the carburettors, this is mostly done with a complete rebuild of the carburettors and intake manifold.

With these modifications and with the DUEL exhaust system the engine will get a very broad power band, we now run our rally engine’s on full race camshafts without any lack of power in the mid range. Due to the broad power band of out engine’s we have a better fuel consumption, we can use longer gears in our gearboxes and have less gear changes. This all gives the engine and gearbox a longer lifetime which is a must for long distance racing

911 Carrera RS 911ST 911SR 911RSR

These cars have set the pace in racing history.
These Porsche Carrera RS’s all had an engine/gearbox rebuild and one of them was restored by us.

Intrax

In the past years we’ve developed a fully adjustable shock absorber set to fit the early Porsche’s (1965 – 1975).
These shock absorbers are available for race/rally and street use.
With these shock absorbers we managed to let the short wheelbase Porsche’s handle even better than the long wheel base ones with new Bilstein or Koni shock absorbers.