Divertor Mach 2 TMS Subaru WRX 14-UP FA20

The Divertor Mach 2 TMS Subaru WRX 14-UP FA20 is a high-performance blow-off valve (BOV) designed for turbocharged FA20 engines in 2014-and-newer WRX models. This product addresses the critical need for precise boost control and eliminating turbo lag in aggressive driving, track use, and high-boost tuning scenarios. The Mach 2 platform represents the evolution of diverter technology, engineered to handle the demands of modified FA20 powerplants pushing increased intake manifold pressure while maintaining engine reliability and responsiveness.

The dual-stage venting mechanism of the Divertor Mach 2 TMS utilizes a precision-tuned poppet design that actively separates recycled intake charge from boost pressure, preventing compressor surge and turbo spool instability. Its compact form factor—measuring 6.4 x 3.5 x 6.5 inches and weighing just 1.35 lbs—allows seamless integration into OEM and aftermarket intake systems without modification to factory mounting points. The TMS (Tuned Manifold System) configuration ensures calibrated response across the entire boost range, from mild street applications to full-race builds, with internal damping that reduces chatter and extends turbocharger bearing life under sustained boost loads.

WRX owners running upgraded fueling, intercoolers, and ECU tuning will benefit most from the Divertor Mach 2 TMS, as higher boost levels amplify compressor stress and turbo lag without proper atmospheric venting. Installation fits 2014-through-current FA20 WRX models, whether street-driven or dedicated track machines, and pairs effectively with both factory and aftermarket intake manifolds. For builders seeking repeatable boost control, reduced turbo wear, and sharper throttle response under load, this diverter is a precision engine management upgrade that justifies investment through extended component longevity and drivability gains.