SPRINT BOOSTER , a Plug-n-Play Performance Upgrade for your 2002 - 2008 MINI Cooper and Cooper S. This is an upgrade that you can feel with normal everyday driving, not just on the track at redline!
"Satisfaction Guaranteed"!

What is Sprint Booster?
Most cars in the 21st century like the MINI have replaced the more co
nventional throttle cable for an ECM (Electronic Control Module) that translates how hard the pedal is pushed into electronic signals in order to provide power to the wheels.
The ETC (Electronic Throttle Control), which is also known as Drive-By-Wire, has the unfortunate downside of delayed response and s
ubdued acceleration, which can create problems in certain situations such a
s up-hill starts, quick gearchanges and overtaking.

http://new.minimania.com/web/Item/NM.../InvDetail.cfm