Transform your 2.7-liter Bi-Turbo into a high-horsepower powerhouse with this complete BorgWarner K04 upgrade bundle.
RS4/modified intake pipes necessary for a complete install - For a bolt-on solution, please see 034Motorsport's inlet pipe kit 034-145-P002 (ES2864575).
Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection.
10X Entries Into Our F80 M3 Sweepstakes
Please measure existing rotors
Brand:
ES#:
4668378
Mfg#:
4B0615601A-XS
Ships in 5 Business Days
ON SALE!
$333.99
This product was last offered at the strikethrough price on 06-13-2026
Precision manufactured for consistent stopping power during high performance driving. Featuring a matte black zinc coating for corrosion protection.
10X Entries Into Our F80 M3 Sweepstakes
Please measure existing rotors
Brand:
ES#:
4668379
Mfg#:
4B0615601A-S
Ships in 5 Business Days
ON SALE!
$303.99
This product was last offered at the strikethrough price on 06-13-2026
Achieve an aggressive, flush stance with HPA’s 25mm bolt on hubcentric spacers precision CNC machined, anodized black, and designed for a secure two piece mount for maximum stability and fitment confidence.
Push your wheels out for a bold stance with HPA’s 20mm Wheel Spacer & Bolt Kit - precision CNC machined hubcentric spacers and extended hardware for a secure, vibration free fit.
All the performance upgrade options from the best brands in the business to help build your dreams. Our performance parts catalog is the largest anywhere and constantly growing to keep your build on track.
Lifetime Replacement
