Flared Exhaust Flanges - $35.00

Check it out, these exhaust flanges for Evo and Twin Cam engines let you fabricate cool exhaust pipes. Instead of a flat flange you get a nice smooth radial transition from the port face into the tube.

These are CNC’d out of a 1” x 3” x 4” solid block of steel. We weld the tube to the flange from the back side and silver braze the outside to blend the two parts together.

Sold each.

Torque Plate with BDL Cover Bolt Pattern - $95.00

If you have an open belt drive (or an open chain drive) without a torque plate you owe it to yourself to add one. It will greatly increase the rigidity of your primary drive.

Our torque plate is set up to mount the Bad Attitude finned primary.

BDL Cover Adapter - $59.00

For some reason BDL decided to change the bolt pattern on their primary drives last year. Unfortunately it meant that everyone was destined to have mismatched primary drives and covers.

Well, no more. We make the rugged adapter for the old style cover to the new style primary drive plate.

Here is how to tell whether you have the old style or new style drive: measure the vertical distance between the two rear cover mount bolts (the two next to the transmission). They will either be 4” or 4.5” apart, center-to-center. 4” is the old style primary plate, our