ST Hi-Tec was first established in 1999 operating out of a small workshop in Newmarket. The initials ST referenced the owner, Soichi Tate who, prior to moving to NZ, worked as head technician at Nissan in Japan. The main focus at ST Hi-Tec was performance – The first step was providing and fitting performance parts – The second, testing and tuning the car on a Dynamometer, which was Soichi’s speciality. With the experience he brought with him from Nissan, in particular; was knowledge of the RB and SR engines. It wasn’t long before the name ST Hi-Tec became synonymous with performance car tuning in New Zealand.

If you attend a car show, you will quickly notice many cars sporting the ST Hi-Tec sticker – Many well known performance cars in New Zealand can attribute their success to Soichi’s tuning. The BNR32, VeilSide equipped 800HP R32 Nissan GT-R in particular, has won many awards in many different competitions. ST Hi-Tec also pioneered many import vehicle events in New Zealand, such as the VeilSide R34 GT-R Land Speed Record, Top Secret Drag Day and more recently the D1GP NZ Series.

At the end of 2015, after 16 years tuning performance cars, Soichi made the decision to sell ST Hi-Tec Ltd.

Our in-house tuner, Antony “Boomer” Hart began his love affair with the Automotive Industry 20 yrs ago and brings a wealth of experience to ST Hi-Tec. His first job in 1991 was with Ace Auto Electrical – After qualifying as an Auto Electrician he operated his own business for 11 yrs utilizing his skills as a Car Stereo and Alarm Systems installer which derived the nickname Boomer.

During this time he gained a comprehensive working knowledge of a cars electrical systems; notably ECU’s and power management. Having touched on vehicle tuning during his time qualifying as an Auto Electrician technician, his interest in this aspect of vehicle performance grew and he was able to utilize this knowledge later on when he signed on with Possum Bourne Motorsport.

During his time with PBM he sharpened his skills in the tuning department – having friends calling on him all the time to tune their cars for the track. Antony is a self proclaimed Mazda and Rotary fan – building and continuing to develop an RX2 tube framed drag car which runs an 8 second quarter miles. You will see Antony at the track, laptop in hand, providing track-side assistance, something we offer to all our customers, at Meremere drag strip and Hampton Downs racetrack.

Averaging over 150 vehicle tunes per year his track record speaks for itself. For a snapshot of his tuning prowess, take Issue #265 of the NZ Performance Car Magazine which features four vehicles all tuned by ST Hitec #AntonyHart. Antony’s practical, hands on experience tuning many different types of vehicles makes the knowledge he brings to ST Hitec invaluable.

ST Hitec’s R35 GTR has set Time Attack NZ Superlap Pro Street track records at Manfield racetrack, Bruce McLaren Motorsport track, Hampton Downs International Circuit and Hampton Downs National Circuit – the results after 6 rounds say it all – Iain annihilated the competition with a sensational 1:07.067 at the final round at Hampton Downs and took out the series win in the Pro Street Class for 2017.

We entered our R35 in the Thames Valley Car Club half mile challenge on Hamilton Rd, Ngatea. Our first run was at 315km/h, smashing the old record of 285km/h. Remember this is a full street trim car, Registered and Warranted, weighing 1845kg’s without driver.

The workshop in Mt Wellington has undergone many changes too – the dyno room has been extended and the air extraction system upgraded to removed to keep vehicle’s cool during tuning – the addition of an insulated internal wall and an insulated door means a huge reduction in noise when a car is on the Dyno.

Catering to the growing demand for modified engines, a dedicated engine build room has been installed within the workshop, providing a dust free, air conditioned environment for all engine work to take place.



Our professionals will perform diagnostic tests, fluid flush and fills, engine replacement, oil changes, and total vehicle overhauls.

Iain Clegg


Jacky Tse


Ben Gainfort

Master Technician

Kevin Herdman

Head Technician

Cohen Brewerton


Attie Visagie