6334 - OBR G290 Billet Intake Manifold (Fits 22.5cc - 30.5cc) We do out source the

We do out source the stamping but do all of the trimming

Just bolt on your exhaust and filter and it's ready to run

The angles and volume of these plates has been changed to increase power

48T steel diff gear

</p> <p>These cases do not use a crankcase gasket

6334 - OBR G290 Billet Intake Manifold (Fits 22.5cc - 30.5cc) We do out source theOBR billet intake manifold for all engines 22. 5cc through 30. 5cc. We've found the big down side to a billet intake manifold is the transfer of heat from the cylinder to the carb. We've done a thick isolator similar to our V2 reed which has proven to not transfer heat or leak. Match porting to the cylinder has been improved over the stock intake manifold. You will need to use carb bolts about 5mm longer then your currently using due to the thickness