Optimized Throttle Bodies for 2003-2007 Mazda3 & Mazda6 Pricing:   Optimized 60mm for 2.0L:   $235   Order               Optimized 60mm for 2.3L:   $276   Order               Optimized 60mm for 3.0L:   $425   Order               Optimized 72mm for 3.7L:   $285   Order 10 day delivery - Click here for questions. (NEW core trade-in values are available!!) * 2006 & 07 2.3L PZEV compliant models have a smaller 55mm TB rated at 5 less HP. This 60mm part works great on the 06-07 models and provides a 5mm larger TB!

Description: These are 'factory new' Mazda throttle bodies that are fully optimized and polished to provide over 15% more air flow area than the stock unit! This increased air flow results in dyno proven increases in HP and torque for better throttle response you can feel across the entire rev range. These throttle bodies are not only larger in area, but also provide a smoother air flow for reduced intake turbulence using the following optimization techniques:

	The stock throttle body is completely disassembled allowing the crude bore surface areas found on the factory part (shown here) to be smoothed & polished before reassembly. All V6 throttle bodies are the new VP7T4U-*-* casting. (Not the recalled VP3M4U part!)
	The top half of the throttle shaft is removed, eliminating it as an obstruction in the air path. The shaft is then ground and polished to minimize the shaft profile.
	The throttle plate is removed, polished and 'knife edged' to reduce its profile and smooth air flow over its surface.
	The throttle plate is attached to the shaft with countersunk screws to optimize air flow area and reduce turbulence.
	Before reassembly, the throttle body bore is fully polished to provide a smooth flowing surface. The input 'horn' is honed out to provide an input diameter that is 4mm larger than the stock unit.       Check out a side-by-side comparison.
	For additional information Click Here