though its not power related I've gotta throw in the B&M short shifter. Al I had on my SVT was the short shifter and the SCA intake(the intakes give the SVTs a great sound under WOP)

Alex L.
01' Audi TT 225 QC
ABT coilovers
ABT/AMS chip
Stop-Tech front brakes
ABT SS brake lines
Forge DV