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• 

  RK Autowerks S63TU4 Engine – 2018+ M5 M8 X5M X6M

  $10,999.00

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• 

  RK Autowerks S58 Race Manifold – Billet Port Injection

  $4,999.99

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• 

  RK Autowerks S58 Stage 2 Turbo Upgrade – M2/M3/M4/X3M/X4M

  $4,499.00

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• 

  RK Autowerks B58 Manifold Gen2 V2 – Billet Port Injection

  $2,999.00 – $3,249.00

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  Select options This product has multiple variants. The options may be chosen on the product page
• 

  RK Billet Port Injection Manifold V2 – B58 Gen 1

  $2,999.00

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  Select options This product has multiple variants. The options may be chosen on the product page
• 

  S55 Billet Pinned Crank Hub

  $999.00

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