Produkty
Sequential gearboxes

+PLUS HELICAL – 6 Speed sequential gearbox Subaru STi

Suitable for:
Subaru

The full sequential gearbox kit Subaru +PLUS HELICAL with integrated ultra lightweight aircraft grade aluminium CNC plate section that holds advanced sequential mechanism with the fastest and softest shifting on the market.

Gears
6
Gears
Revolutions
7000 RPM
Revolutions
Torque
1200 Nm
Torque
+PLUS HELICAL – 6 Speed sequential gearbox Subaru STi
Specification

Engineered to fit the original Subaru case without modifications, but with weight reduction of 5,5 kg compared to the standard Subaru transmission. We offer instalation to your original gearbox at X Shift gearboxes. This includes cleaning and inspection of all parts, differential adjustment, setting tooth clearance of final drive and installation of sequential kit. Kit has unique 17° helical gearing, achieving approximately 40-50 % noise reduction compared to the straight cut versions +PLUS and R4 PRO.

Complete kit also with upgraded high strength gears and shafts, billet selector forks and billet selector rods made of highest quality steel. All parts are REM isotropic superfinished.
Why XSHIFT?
Major Advantages
  • Noise reduction 40 – 50 %
  • Rated up to 1200 Nm
  • Fastest and softest shifting performance: 30-40 miliseconds
  • Significant noise reduction thanks to helical gears
  • Components from the highest quality and specialy heat treated steel
  • All parts REM isotropic superfinished
  • Only one selector rod for all selector forks – weight saving solution
  • Total gearbox weight: 79,5 kg (5,5 kg lighter than a standard 6 speed STi)
Shifting and gear ratios

The Subaru +PLUS HELICAL kit and gear ratio was tailored to handle the power of racing cars and to increase the comfort while driving at the same time.

 Gear ratio 1 2 3 4 5 6
HELICAL 2,90 2,00 1,50 1,18 0,95 0,80
Final drive 10/39 (3,9) 10/44 (4,4)        
Kit includes
  • Aircraft grade CNC aluminium case
  • Complete sequential mechanism with dog engagement
  • Input and output shaft
  • Gears 1st – 6th
  • Shiting forks
  • Bearing and needle bearing set
  • Gear position Indicator Sensor
Accessories

Together with the powerful Subaru +PLUS sequential gearbox we can provide many performance accessories that helps you achieve top results on the track.

and many more...
Photogallery
Videogallery

Gear ratios calculator

Gear T1 T2 ratio RPM down speed speed down
1 10 29 2.9 - 68.7 -
2 13 26 2 2017 99.6 30.9
3 14 21 1.5 1625 132.8 33.2
4 17 20 1.18 1404 169.4 36.6
5 20 19 0.95 1252 209.8 40.4
6 20 16 0.8 1025 249.1 39.3
Tyre metric dimensions
Tyre inch dimensions

If you have choosen your configuration, please take a screenshot of this calculator and attach it to the configurator below.

Gearbox configurator

For prices and more info, please contact us down below.

Please fill in your details and as many information as possible about your car (power, race purpose). After sending your configuration we will contact you as soon as possible.

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X Shift Gearboxes sample catalog mockup
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