Carbahn

Auto & Tires

Carbahn sells performance upgrade packages, software tunes, lightweight wheels, suspension kits, aero parts and complementary service parts for late-model BMW, Audi and Porsche vehicles. Most complete builds sit in the $15-30k range, with individual components starting around $1k, placing the brand firmly in the premium segment. Sales are handled through a hybrid model: customers spec builds online and then have parts drop-shipped to one of ~60 authorized installer partners across the U.S. The company is the aftermarket arm of race engineer Steve Dinan’s new venture, so every tune, exhaust or big-brake kit is track-validated on Carbahn’s own SRO GT4 cars before release. Its Autoworks+ engine software retains factory drivetrain warranties up to 5 yr/75k mi, a rarity in the tuning space, and published performance gains are verified on in-house MAHA dynos. Signature offerings include the 550-hp “M3 S58 Stage 2” package and forged “Comp Series” 20-inch wheels that shave 5 lb per corner. Buyers are typically 25-55-year-old enthusiasts who daily-drive their cars and want OEM-plus reliability with measurable lap-time improvements; many previously owned Dinan-branded parts and follow professional sports-car racing. The brand speaks to a data-driven, warranty-conscious mindset that values transparent power graphs, corner-weight sheets and documented Nürburgring testing over flashy aesthetics alone. Carbahn competes with other high-end European tuners that focus on software, hard parts and complete vehicle packages. It differentiates by combining race-proven engineering, a factory-matching warranty, direct motorsport data feedback and the founder’s established credibility, offering customers a track-capable yet warranty-safe upgrade path rather than purely cosmetic or extreme power builds.

Race-proven power that keeps your warranty intact