Engineered to fit the original Subaru case without modifications. Weight reduction of 10,5 kgs compared to the standard Subaru transmission, The Subaru R4 PRO kit has integrated an ultra lightweight aircraft grade aluminium CNC plate section that holds the new sequential mechanism and shafts.
 
Complete also with upgraded high strength gears and shafts, billet selector forks and billet selector rods made of the highest quality steel , All parts are REM isotropic superfinished.
 
   Fast facts
 
•Gearbox type: 6 speed full sequential gearbox
•Gear shift layout: R-N-1-2-3-4-5-6-R-N-1-2...
•R4 Kit Weight: 29kgs
•Total gearbox weight: 76kgs (10.5kilos lighter than a standard 6 speed STI gearbox)
•Maximum torque: 1000NM
•Tooth profile: Straight cut
•Shift performance: 30 - 40 milliseconds
 
   RATIOS AVAILABLE
 
    MR-N5   MR 1   MR 2   C1      C2     C3     C4
 
1.   3,10      2,64      3,33    3,33     3,33    3,33    2,91
2.   2,42      2,87      2,38     2,38    2,38    2,14    2,08
3.   2,00     2,27       1,87     1,80    1,80    1,59    1,56
4.   1,67     1,80       1,53      1,41    1,37     1,26    1,21
5.   1,39     1,43       1,28      1,15     1,05     1,05   1,00
 
Note: Gear lever with Wiring loom and Programmable LED display are SOLD SEPARATELY