The Alfa Romeo 155 Q4 is a rare car, and further details about the car, along with loads of road and track videos, and magazine articles can be found at Berlinasportivo

I've owned this Q4 since early 2000, and have steadily improved its performance over that time. Originally 186/190 bhp and 219ibs-ft the car now runs at 270bhp and 315ibs-ft.

This has been done by the following modifications, Large double cone air filter, improved inlet routing, increased fuel pressure, racing spark plugs, tubular manifold, hybrid T3/T4 turbo, free flow exhaust system incorporating a single rear silencer. The car was then mapped on a rolling road to optimise boost, fueling and power.

Inlet temperature is being aided by an inteligent waterspray system which sprays water onto the intercooler depending on inlet temp, injector duty cycle and boost.

The car now rides on 16x7.5j Compomotive MO's in satin black. The Alfa offset and bolt pattern are not that common so the wheels where milled for the car from blanks. The tyres are 215x45 r16 Toyo Proxie T1-S. Brakes are Tarox G88 disks both front and rear, with EBC redstuff pads. Not idea but they do the job.

The interior has a replacement Momo steering wheel, can't remember which one as it was bought alot of years ago and has travelled from car to car with me. Sparco Tourino seats are a big improvement and a boost gauge keeps an extra eye on the engine.

The Alfa Romeo 155 Q4 is a rare car, and further details about the car, along with loads of road and track videos, and magazine articles can be found at Berlinasportivo