View Full Version : How many discs?

12-08-2009, 03:44 AM
My bike is 08 FLHT with 103", 10.5:1 pistons, V&H air cleaner, Woods TW-408-44 cam, PCV with autotune.

After your suggestion I just bought Fatshot slip ons and open end caps. From my Fatboy which has Supermeg I remember that maximum flow without ruining low end torque was 8 discs with open end cap. Is it right? Should I run fathots with my setup with 8 discs? I use OEM crosspipes and should be number of discs be same left and right pipes?

Thanks in advance

12-08-2009, 07:29 AM
Due to the smaller core assembly on the FatShots (vs the 2:1) you can use less discs, 3-4 and the open end cap. If you feel your top end performance is suffering start adding discs to the right side.