SpeedFactory Racing AWD B-Series Billet Bellhousing Labor Day Weekend Sale! We've made improvements and fixed

We've made improvements and fixed the parts that break so that you can make better and more consistent shifts

This includes the ’02-’14 WRX and ’07+ Sti model years

Our gaskets are reusable and significantly reduce the transfer of heat from the head to the intake manifold reducing intake air temps and thereby producing more power

The SpeedFactory Racing AWD B-Series Billet Bellhousing is your ultimate choice - precise

The SpeedFactory HP Supra Intercooler Upgrade is ideal for street and race applications with upgraded turbocharger(s) where space is limited but 850HP-1000HP+ of efficient charge air cooling is desired

SpeedFactory Racing AWD B-Series Billet Bellhousing Labor Day Weekend Sale! We've made improvements and fixedThe SpeedFactory Racing AWD B Series Billet Bellhousing is your ultimate choice precise, accurate, & pain free to build unlike others. Proven in our 6 second 2000hp B Series OUTLAWD drag car. Unmatched quality & unrivaled performance, a truly functional work of art as noted by all the top teams and shops that have made this housing the foundation of choice for their AWD B Series racing transmissions. Precision CNC Machined from Solid 6061 T6 Aluminum