Even at $2500 Renntech is too expensiv., LET has a pully system with a choice of 178 181 185 for around $900 get the tune from InMotion for 300-500 and your at 1200-1500. With a grand left over you can get an LET heat exchanger, phenolis spacers, plugs, and a SL55 air intake and still have money to take your wife out to a candle lit dinner to explain the charges on the credit card