Selling £0.99 items at £35 on eBay
Quite frequently, when I search for parts for my car on eBay, I come across auctions for power boosting chips promising the world. Based on the description, however, it becomes quite clear what it actually is, and what it does:
you would be buying a Performance Boost Resistor, which would add 5-20 BHP to your engine. it will fit any fuel injected vehicle that has an ECU, but not turbo or diesel models. it takes about 5 minutes to fit, and can be removed without any adverse effect to your engine. so you can put it in your next car.