EPL (European Performance Labs) in conjunction with Heffner performance has released a HPFP (high pressure fuel pump) upgrade for Audi R8 4.2 V8. As you should know, the R8 4.2 is direct injected. Direct injected cars have some difficulty upgrading their fueling but EPL has figured out a solution for the R8. EPL ECU tuning combined with two upgraded fuel pumps allow the Heffner R8 V8 twin turbo to now hit 8.5 psi no longer being fuel starved. This provided an additional 50 horsepower at the wheels.

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