Cost £280, looking for £100 posted for a quick sale. Have original invoice from http://www.tdi-tuning.co.uk/ Resulted in 35bhp gain and a couple of extra BHP. Selling on behalf of a mate who's just sold his A3, I have a A4 170 already so unable to use it. The Digital PD box is your one stop diesel performance enhancing solution if you,re after increased BHP and Torque at an affordable price for your 2.0 PD TDI. The PD box is housed in a durable metal housing to protect it from the elements and uses genuine VAG connectors to ensure this plug and play device connects to your engine first time around for trouble free motoring. The system is fully adjustable and uses a 12v direct power feed from your car battery. Fitting is very straight forward with our full English instructions and cable ties provided for that professional installation. All our diesel performance systems come with a 3 year warranty and a 14 day money back guarantee for peace of mind.