Does anyone know if they actually work? There on eBay for £20 it gives you 35bhp extra?

£20 cost to ruin your car.

Save the money on the high likely repair costs of a chip, and get a proper remap put on your car.

Waste of money!

Ok thank you

I had one on a Seat Ibiza 130 TDI & I got more MPG, BHP & a lot more torque. The only down side was it was lumpy on tickover sat at the lights, which I thought was a small price to pay for the improvement I had gained. No doubt this post will get jumped on by the “Your Turbo will Blow Up & Your Engine Will Fall Out down the motorway” guy’s. But I one in for over 3 years & it covered over 43000 miles & never missed a beat. I now have the petrol VRs so It’s just sat on the garage shelf :( if you want it? PM me your address & you can try it for yourself & keep it if you like it or throw it in the bin if you don’t.