05 e55 upgrade suggestions
After that, work on cooling mods and long tube headers. Help the car breathe and keep cool. That will help you when the car keep cool and maintain consistent power once you begin to change out the pulley.
More boost from pulley mods = more heat and slower car.
do cooling right the first time = new ic pump, split cooling, and a 5+ gallon ice trunk tank.
if you plan on 1/4 mile drag strip a drag set up should be top of the list before any power adders.
plenty of options on a heat exchanger ((new or modify stock unit).
search these topics endless threads.
i wrote the book on mistakes.


