b7 a4 bully chutch they have flywheels but i cant find it just have a part #

[oakvilleb7_2.0t]

So I did some research in bully if I go about doing the occasional track days and gave them a call and talk to a guy says min I should do is a stage 2 clutch and the way I should go is a stage 3 price isn't bad on both but the guy also recommended that I upgrade my flywheel is gave me a part for the # being # 100511-12 but I cant seem to find the flywheel or anything like that from bully clutch. Any help would be great.
I am putting this on a 07' B7 A4 2.0 Quattro S-Line