Sequential 4 Speed



7075-T6 Billet CNC'd Case.


OEM Input shafts for

Straight cut and diamond ground for maximum efficiency and load transfer across the teeth. Constant mesh dog engagement that shifts gears with shift cuts as quick as 38 milli seconds. You’ll be amazed how quiet this gearbox is (totally streetable) and how cool it runs.


Toyota - 21 tooth spline (R154)

Toyota - 14 tooth spline (V160 / V161/ 6MT)

Nissan - 24 tooth spline

GM      - 26 tooth spline

Mazda - 23 tooth spline


Others possible on request


Internal splash





Outlet and Inlet for lines to oil pump, oil filter and oil cooler options


Oil Temperature Sensor

Oil fill

Drain with magnetic plug

Flange pre drilled for 1350 series Yoke or 1350 series Slip Yoke – supplied with hardware. Comes pre-fitted with a reluctor wheel ready to accept our Speed Sensor to eanble launch control, traction control, speed referenced boost or a speedometer.


Front Faceplate

738 ftlb / 1000 nm / 102 kg and 11,000 RPM GM Muncie


29kg or 64lb



341mm long

180 mm long

277mm high

HGT Billet CNC gear lever systems with remote mount base - Centre Tunnel or Tunnel Tight Offset positions and 3 different height options

HGT Shift Cut Knob

HGT Billet brackets for Motec & Geartronics Paddleshift actuators

HGT Billet CNC Digital Gear Postion Display

HGT Billet Clutch Release Bearing with Shims

Oil Pump - Siemens VDO or Tilton 40-524

HGT Breather kit

1350 Series Yoke or Slip Yoke - bolts up to output flange and welds to driveshaft

Cutom Bell Houses to allow direct bolt up of HGT Gearbox to:

Toyota 1JZ, 2JZ, 1UZ, 3UZ

Nissan SR20, RB20, RB25, RB26, RB30, VQ35, VR38

Mazda Series 6 Rotary - Rear starter motor mount

GM LS - OEM setup using 168 tooth ring gear, front mount starter motor and 11”/12” clutch

GM LS - Race setup with cover mounted 110 tooth ring gear, rear mount starter motor and 5.5"/7.25" clutch 

BMW – Inline 6 M50, V8 M60, M62, S62, S65, V10 S85

Honda - K20/K24 RWD

Others availalble on request

Gear Ratios


1st   2.36  2.16

2nd  1.65  1.65 

3rd   1.23  1.23  

4th   1:1     1:1 

Rev  2.94 on all