4 Tec 1200

BMP 4-Tec Stock Muffler Mod

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In stock

  • Muffler mod works on all 4-Tec 1200 models
  • Looks and sound like the factory exhaust
  • Gains 4-5 horsepower and even more with a header
  • Turnaround time is 2-3 weeks
  • No exchange, this mod is done to your exact muffler
  • Requires a small belly pan modification for the 3rd outlet we install
  • Please send a copy of your invoice, or fill out our Work Order Form when sending in your exhaust.



Want to add horsepower and but don’t want to worry about getting checked for an aftermarket muffler? Our stock muffler mod is for you! We add an additional outlet, and modify internal baffles for increased airflow and horsepower. This equals a 4-5hp gain on a stock machine, and 10-12hp on turbo motors.

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