They are called "Fuelies". They are a 3 stage set up for the best performance. Shorty pipes you will need some kind of tuner to make them work correctly. Small at the engine(stock bolt pattern), steps up 1/2 way down, then larger at the end. Basicly 1 1/4" stepped up to 2" at the end. I love my pipes. They are way loud! I wrapped them with DEI titanium 2" wrap and made the brass end caps to finish them off. Lot's of money in the end but worth it. The PC-V tuner was $315 and the pipes were around $700 shipped. The company is out of Florida. Great company to deal with. I talked to them for over 2 hours at least and they explained how everything works between the pipes and tuner. I bought the tuner and pipes from them.
Last edited by cpracing519; 11-08-2012 at 10:52 PM.