Ross Machine Racing 90mm Throttle Body w/ Vibrant HD 4" Adapter - RMR-115-ASSY + RMR-116NOTE: For use with Vibrant 4" HD Clamp Assembly (Sold Separately)! Ross Machine Racing's 90mm throttle body is made to the highest standards. Manufactured using CNC machining and is made from 6061 billet aluminum combined with a stainless steel shaft. Key Features: Uses same mounting 4 bolt pattern as 86 93 5. 0L Mustang throttle body M8x45mm screws and washers included Total thickness including the hose mount is 2 1 2 inches Standard Mustang