SpeedFactory Racing AWD B-Series Billet Bellhousing Labor Day Weekend Sale! and the thread engagement length

and the thread engagement length works with both the shallow OEM or deeper aftermarket camshaft bolt holes

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

Dark Red or Silver

SpeedFactory Racing AWD B-Series Billet Bellhousing Labor Day Weekend Sale! and the thread engagement lengthThe 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