Add to Cart Compare Quick view 4 Bar map sensor upgrade for sidewinder / thundercat zr9000 MSRP: Now: 165.00$ CAD Was: 4 Bar map sensor upgrade for sidewinder / thundercat zr9000 This mod is needed for boost levels over 17psi if running a stock map sensor currently. This is an upgrade to the 3 bar map sensor upgrade which is limited to 30 psi. If you plan to run above... MSRP: Now: 165.00$ CAD Was: Add to Cart Compare Quick view