I guess the price has dropped by $101 since the competition is a little higher now, and they've already recoup'd R&D costs.


from APRs website
APR stainless steel, mandrel bent, cat and downpipe replacement for the S4 is $1600.

APR's S4 Cat and Downpipe Exhaust replaces the the exhaust from the turbochargers to behind the lower factory catalytic converters. The system removes the factory pre-cats right off of the turbocharger and includes six separate components. Included are the two pipes off of each turbocharger, a set of pipes with catalytic converters, and a set of test pipes without cats. With TIG welding, fully stainless construction, and CNC'ed hangers, you will not find a higher quality system on the market.

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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


picture poster part 1 picture poster part 2
picture poster part 3 picture poster part 4
Ask me why my last set of turbos blew