Review on Airaid 200 617 PowerAid Throttle Spacer by James Duffield

The increase in performance is clearly noticeable. The sound at 4000 rpm is amazing. Add a K&N cold air intake, an Air Raid throttle body gasket and an available pre-programmed chip. Dinosaur shows a combined gain of 39 hp. for my Chevy Silverado 6.2 at 4500-5000 rpm at 52 F. Not that it makes all three promises, but I'll take it for about $600. Cheaper than a Super Charger (about 1/5 the cost) or a Full Duel exhaust with a high-flow coil (about 1/4 the cost). Pay attention to the total value, i.e. the cost per hp.