Billet Aluminum Trottle Stop, 65-73 911, 914(All) $24.95 Until now, there has never been a source for a new throttle stop, which on many older 911's and 914's is battered from years of use. These new aluminum throttle stop mounts on both stock and aftermarket aluminum floor boards, and comes with a new nylon adjuster bolt. Stainless hardware is included for attachment to aftermarket floorboards.