The only concern from my perspective is compatible fuel lines that won't disolve over time.

I'm sure Audi is gonna hate the idea of home-brew biodiesel or heaven forbid, homebrew veggie oil systems.

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Matt's Mad Beast: Blouch K04/997 hybrids, RS4 intake&cams with port-matched heads, 60lb injectors, the rest of the supporting cast
EPL Tuning v4.0 93oct 463whp (70F) April 2007
EPL Tuning v3.0 93oct 460whp (40F) Jan 2007
EPL Tuning v2.0 100oct 480whp Jan 2007
EPL Tuning v2.1 100oct program 06-23-2006
471whp @ 7000rpm, 449 lb/ft @4023 rpm

EPL Tuning v1 93oct progam 04-05-2006
418whp @ 7150rpm, 430 lb/ft @3853 rpm

EPL Tuning v1 93oct prog w/100oct (no adapt) 5-13-2006
437whp@6714 427wtorq@3884

Custom Tuned by EPL


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Ask me why my last set of turbos blew