Go Fast Bits Mach 2 TMS Recirculating Diverter Valve 2015-2021 WRX YMM_2016_Crosstrek while the 124-tooth ring gear

while the 124-tooth ring gear and SFI 1

ACT Difference: Every unit is 100% clamp-load tested and dynamically computer balanced for smooth

this piston set is a smart upgrade for drag strip runs or spirited street driving

it was important to keep the total bend angle in the intake tube as low as possible

Go Fast Bits Mach 2 TMS Recirculating Diverter Valve 2015-2021 WRX YMM_2016_Crosstrek while the 124-tooth ring gearThe Mach 2 is configured as a 100% recirculating valve (i. e. bypass, plumb back) and add on kits are also available to convert to 100% atmosphere venting. Use the recirc model for direct factory replacement when you want the performance WITHOUT the noise! Add the conversion kit when you want some noise with your performance! Factory bypass valves have two main shortcomings one is that they are typically designed to start opening above a certain