• Jack Spania Racing Grimmspeed manual turbo boost controller bypass valve, adjustable to 50 PSI, for engine performance tuning.
  • Jack Spania Racing Grimmspeed manual turbo boost controller bypass valve, adjustable 50 PSI for engine performance.
  • Jack Spania Racing Grimmspeed manual turbo boost controller bypass valve, adjustable 50 PSI, engine parts for turbocharged vehicles
  • Jack Spania Racing Grimmspeed manual turbo boost controller bypass valve, adjustable for 50 PSI, engine part for turbocharged vehicles.
  • Jack Spania Racing Grimmspeed manual turbo boost controller bypass valve, adjustable 50 PSI engine part with metal fittings and control knob.
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For Grimmspeed Manual Turbo Boost Controller Bypass Valve Adjustable 50PSI

For Grimmspeed Manual Turbo Boost Controller Bypass Valve Adjustable 50PSI

$39.95 USD
$39.95 USD
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For Grimmspeed

Manual Turbo Boost Controller Bypass Valve Adjustable 50PSI


The MadDogPerformance Manual Boost Controller, the most refined manual BC available on the market today. Our MBC allows you to raise OEM boost levels in a quick and efficient manner through superior boost range and ultra-fine resolution (.25 PSI/click). Adding the MBC to your car will result in quicker spool up, quicker response, increased horsepower, and increased torque.

Specification: 

  • Over 250 Way Adjustable  
  • Heavy Duty SST Dual Ball Detent System -clicks with each turn for active feedback 
  • Laser Etched Scale and Labels -easy to read and repeat precise adjustments
  • Extra Long Travel Spring -ONE spring, no need to switch springs 
  • Superior Range without Sacrificing Resolution -0-60 PSI capabilities with ultra-fine adjustments 
  • Universal Mounting Solution
  • CNC'd From Weapons-Grade 6061 Aluminum -incredibly durable and ergonomic  
  • ***Includes 2-3ft of Silicone Boost Hose 

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