Do these piggy back devices work?
and do they damage your car in the long run?

thanks danny

Which ones? The ones from ebay for £5 or the £500 ones?

Driving your car damages it in the long run

the £5 ones from ebay

They are 6p resistors, I think that says enough. Stay well clear

wat are 6p resisters.

These supposed +20% performance increase chips are just resistors. nothing more

Definition of a resistor on the web:

"A resistor is a basic component in electronic circuits that resists the flow of electrical current. Resistance is denominated in Ohms. Higher resistance results in less current. All electrical components (except superconductors) have some resistance, wanted or not. Most home speakers are nominally rated at 8 Ohms of resistance (4 Ohms for cars), but in reality the resistance is closer to 6 Ohms in most of the band, has a peak of 20-100 Ohms at resonance, and also rises at high frequencies due to voice coil inductance."

Daz

They are a scam, a way of making **** loads of money from laxxers.