Trask Performance Parts & Accessories

Trask Performance is the name people reach for first when they're talking turbo systems for Harley V-twins — Phoenix-based, in business since 2001, and probably the leading specialist in forced induction for the platform. The catalogue extends well beyond turbo work into billet air cleaners, bars, controls, clutch components, and frame parts, all USA-made.

The Assault Series custom builds the brand has won awards for hint at the engineering depth behind the off-the-shelf parts. Premium pricing, but the components fit cleanly and come with the dyno data behind them.