Choose you engine

New chiptuning with specific software for GMC Topkick Racing Box. Increase power, fuel economy. Limited offer. Buy now!

• Chiptuning GMC Topkick 6.6 Duramax 300 hp
  ★★★★★
  € 89.90

  	Before	RACINGBOX
  Power	300 hp	362 hp
  Torque	Standard	+40%

  Go to product Add to cart
• Chiptuning GMC Topkick 6.6 Duramax 330 hp
  ★★★★★
  € 89.90

  	Before	RACINGBOX
  Power	330 hp	397 hp
  Torque	Standard	+40%

  Go to product Add to cart
• Chiptuning GMC Topkick 7.8 Duramax 200 hp
  ★★★★★
  € 89.90

  	Before	RACINGBOX
  Power	200 hp	247 hp
  Torque	Standard	+40%

  Go to product Add to cart
• Chiptuning GMC Topkick 7.8 Duramax 215 hp
  ★★★★★
  € 89.90

  	Before	RACINGBOX
  Power	215 hp	264 hp
  Torque	Standard	+40%

  Go to product Add to cart
• Chiptuning GMC Topkick 7.8 Duramax 250 hp
  ★★★★★
  € 89.90

  	Before	RACINGBOX
  Power	250 hp	304 hp
  Torque	Standard	+40%

  Go to product Add to cart
• Chiptuning GMC Topkick 7.8 Duramax 275 hp
  ★★★★★
  € 89.90

  	Before	RACINGBOX
  Power	275 hp	333 hp
  Torque	Standard	+40%

  Go to product Add to cart
• Chiptuning GMC Topkick 7.8 Duramax 300 hp
  ★★★★★
  € 89.90

  	Before	RACINGBOX
  Power	300 hp	362 hp
  Torque	Standard	+40%

  Go to product Add to cart