ACT Subaru 04-20 WRX STI Mod Twin HD Street Kit Unsprung Mono-Drive Hub Torque Capacity 700ft/lbs 1987-chevrolet-sprint-turbo-esi8843834 It features BORLA(r)'S patented Multi-core

It features BORLA(r)'S patented Multi-core 6 tube design for maximum flow

The systems are made using T-304 stainless steel to ensure that it can handle whatever you throw its way

Retains Factory Tie-Down Access

FM1-HDSS kit features ACT's most popular Heavy Duty pressure plate and most popular street disc

T1R-MZ01 Mod-Twin 225 HD Rigid Race Kit tackles aggressive launches and rapid shifting of high powered AWD’s by combining twice the ceramic friction surfaces with a no-nonsense solid Mono-Drive hub in a completely modular design

ACT Subaru 04-20 WRX STI Mod Twin HD Street Kit Unsprung Mono-Drive Hub Torque Capacity 700ft/lbs 1987-chevrolet-sprint-turbo-esi8843834 It features BORLA(r)'S patented Multi-coreT1S S07 Mod Twin 225 HD Rigid Street Kit blends easy pedal feel, smooth but positive engagement with quick shifting for high powered AWDs by combining twice the organic friction surfaces with a no nonsense rigid Mono Drive hub in a completely modular design. Each diaphragm spring endures an exclusive four stage heat treating process. Steel backed Friction Plates with high quality organic friction materials deliver stable friction coefficient, good