Killer B Motorsport

The full Killer B Motorsport line at Crawford Performance — oil pickups, oil pans and baffles, Holy Headers and up-pipes, turbo inlets, coolant reservoirs, Delrin shift knobs, adapters and hardware for Subaru EJ and FA engines.

Built in-house

Engines assembled at our East Coast facility. Parts designed, tested, and proven on our own cars — including the Gymkhana builds.

Support from the builders

Questions go to the people who made the part, not a call center. Contact us — a real person answers.

Backed in writing

Engines carry 1 year / 12,000 miles. AOS carries a limited lifetime warranty. Extended engine coverage is available.