Testimonials

Graeme Sargent

On the 20th February 2011 I dropped my Holden GTS 325 series 2 at Harman Motors to have a custom tune and mild cam fitted.   Two days later the devastating earthquake struck and after watching all the media reports in that  area and seeing on the news the church next door had come down I naturally thought it would be the last I saw of my new GTS.

Knowing the staff at Harman's would have their own personal issues to deal with I left it a couple of weeks before getting in contact with them.   To my surprise they were very sure all was OK with the car when they had left the building and we just had to wait until they got the all clear to go back into the area.

A month later I picked the car up without a single scratch on it and partial work done on the car.   The dyno work was not possible at that stage due to earthquake damage.   Several weeks later I returned the car and everything was completed, and I am very pleased with the performance.

All credit to Jonathan and staff for getting their workshop up and running in what must have been very difficult times for them.

Andy Clayton

I wanted my Crewman Cross 8 to perform like a V8 should and now it does!

I went to Harman Motors and followed their recommendations.   Improved exhaust, cold air intake and their custom tune.

An extra 30Kw, quiet on the open road, then sounds and feels great when I accelerate.   It is fantastic, all I wanted and more.

I even went to the drags at Lawrence and had so much fun!

Most of the Holdens there that were doing well had been to Harmans too.   I never thought I would do any of this, but now I want to see what else they can do.

Andy Clayton
Wanaka

Christine Horne

My husband had his SS Ute modified at Harman Motors with stunning results, so when I bought my new VE SS V we decided to give it the "Harman Motors treatment" as soon as possible.   At 5,000k they fitted free-flows, new rear mufflers, cold air intake and then Custom Tuned it.   What a difference - smoother, much more responsive, better fuel economy and a great sound.   85,000k later, no engine trouble and one very happy lady.

Thanks for the great service.

Christine Horne
Geraldine

Bruce Wood

I own a VZ Commodore SS with a big bore exhaust, Headers and Cold Air Box Intake now with a custom tune.

The car had previously had ‘a mail order tune’ which did not give the results I was promised, so I had Harman Motors do a Custom Tune on their Dyno.

Within a few minutes of picking up my car from Harman Motors the improvement in response even at low revs was immediately obvious. Dyno readings were impressive, gaining a huge 30KW’s at the wheels from the Custom Tune alone!

Since the Harman Motors Custom Tune my car is a lot faster down the ¼ mile, recently running a personal best and quickest car of the day with a 13.3 sec pass. Most Clubsport owners at the event were struggling to get under 14 seconds. An added bonus from the tune has been an improvement in fuel economy.

I am extremely happy with my car now and would not hesitate to recommend anyone wanting the best from their Holden to take it to Harman Motors.

Bruce Wood
Dunedin

John Harris

After a visit to Harman Motors my Monaro has been completely transformed. The Harrop supercharger, exhaust system and expert tuning have given me a car which is very drivable, with heaps of torque at any speed and a staggering 320 kW’s of power at the rear wheels. It is very smooth and the fuel economy is excellent – 9.7 litres per 100 km on a trip, not to mention the total experience of my “new” Monaro. Love it.

John Harris

Paul Pasco

I had owned my VY Crewman since new, but it always felt a bit dead compared with my VU Ute, partly due to being a heavier vehicle. I had headers and a different cold air intake fitted which did help a little.

I came up from Bluff to the Rangiora Muscle Car Show where I met John and David Harman at lunch time Saturday. They explained that a Custom Tune would get the best out of my Holden, so it was done by late that night. An extra 24 KW at the rear wheels!

On the trip home on Sunday, it clearly had more power and better fuel economy. On the open road I can now do most things in 6th gear, and very comfortably.

I wouldn't have thought it was possible!

Thanks boys for the great service. I wish I had known about you earlier.

Paul Pasco (Bluff)

Andrew Good

I have been in the automotive industry for the last 20 years and spent the first sixteen years employed by a large Holden dealership where I began my career as an apprentice. I worked my way through to service foreman before leaving to establish my own business, GT Performance Ltd, specialising in repairing and servicing Holdens and HSVs. I gained a vast experience working on new and near new Holden products including being factory trained by HSV. Amongst other achievements and experiences in 2002 was awarded with being the Top Holden Passenger Technician in New Zealand.

I have been involved with local motor sport and have carried out modifications to the Holden product over the years and in recent times to improve performance, from intake and exhaust modifications and engine management upgrades to camshaft changes etc.

Having recently been introduced to the more modern side of engine management enhancements through Harman Motors “Custom Tuning”, I have experienced first hand with my own V8 Ute the incredible transformation in drivability.

The team at Harman Motors has not only made significant power and torque gains, they have also enhanced throttle response, transmission shift and even fuel economy, on a vehicle that is otherwise standard.

I would without doubt recommend this service to anyone looking at upgrading their vehicles performance as it quite honestly has “exceeded my expectations” something we all strive for.

Andrew Good
GT Performance Ltd
Holden & HSV Service Specialist
03 349 4130

Gavin Blackwood

I have a VE Holden SSV 6.0 auto with headers and big bore exhaust and I had it Custom Tuned at Harman Motors in Christchurch.

It gained an amazing 24 kilowatts and fuel efficiency improved from 11 to 10.5 litres/100km. Acceleration was much stronger, especially noticeable at lower revs.

Then recently they fitted a cam, cold air intake and tuned it MAFless. It gained an extra 54kW again! The power increase is huge. Under full acceleration the front of the car lifts up and just stays there, pulling hard all the way. I love it!

Fuel economy is still good and I have gained nearly 80kW at the rear wheels.

1/4 miles are so much fun. After the Custom Tune my VE holden SSV with headers and big bore exhaust and cold air box intake could do it in 14.4 seconds, now it is 12.7. I am thrilled with the results.

Gavin Blackwood
Dunedin