JB Performance offers porting and polishing of 1.33L (3133) and 1.5L (3150) SR3 Generation 1 and 2 superchargers and also the 3133 and 3150 RC models. These models were sold under different brands and were made by SRM Autorotor. Brand names include Whipple, Kenne Bell, Lysholm, Autorotor and more.
The rear entrance is ported to rotor wall. It is quite restrictive. We do not remove material or polish support ribs. The center discharge rib is removed, ported, and polished.
Please note that there is an extra fee for disassembly and assembly when not combined with a rebuild. We cannot guarantee the condition of any consumable components with supercharger porting services. Remember, this is port work, not a rebuild. If you wish to have it rebuilt, please choose this service when the item is sent in, so that it can be handled by the correct department. See rebuild section on rebuild pricing and information.