Balance Shaft Delelte Kit
Remove excess weight from the rotating assembely and gain back the lost horsepower required to rotate the Cassette balancer. Free up to 4 whp from this modification alone.
Gain up to 1 quart of oil capacity at the same time.

Requires removal of oil pan,
F2 recommends doing this modifcation at the same time as an oil change.
Also consider the F2 Baffle Kit at the same time of install.
Posted by ryukensfj on 25th Jan 2010
I had this installed at the same time my turbo kit was installed. As AtomSphere had said this is dyno proven to gain around 4whp, and your engine revs a little faster. It has improvements like a lightweight flywheel for only $20!
This and the cosworth kit is the best bsd kit that you can get for your 2.3l engine. The cosworth's kit is $40+ so you can get the exact same thing from F2 for a fraction of the cost.
I have not notice any additional vibrations but that could be that I'm only running an aftermarket rear engine mount. People with all 3 harder engine mounts may notice slight vibrations. But with all stock mounts I can honestly say you will have no noticeable vibrations.
Posted by AtomSphere on 1st Jan 2010
For 20 USD, you gain dynoed proven 4WHP that can be felt immediately! It has been proven by alot of people to work. Engine tone sounds different and a bit more aggressive.
Good quality product made by F2. No problems after 10,000 KM. Only drawback is additional vibrations.