“Got my Subaru Impreza S-GT remapped, no lag, instant throttle response and keeps going on. Good communication, good information on how much power he can add onto vehicle, so the car is in healthy shape, which is now at 290HP. Love it and very happy with the outcome….CHEERS!! Quick and easy service and always keeping you updated.. So come on guys and get @xtreme chiptuning wise….. :-D”

“Thanks Brno for the remapping. I was after more horse power but it’s all about the torque. The increase pushes you back into the seat and doesn’t give up. I’m very happy with the results. 560N.m Torque and loving it.”

“Great and friendly service and the map took no time at all to load! Had my Polo GTi remapped on Saturday and immediately took her for a drive through the Rimutakas and boy oh boy was it amazing. Torque increase was the most noticeable and the quicker spool from a lower RPM meant the car never struggled at any point. I’ve had several cars remapped but never has the map been so smooth and there are no flat spots, and cold starts go off without a hitch. Really happy with the results and experience thanks to Brno.”

“A stock E55 is a good car – blew my socks off the first time I drove one ‘in anger’. But now it’s gone from a wolf in sheep’s clothing to a banshee in a wolf suit.

Over the years a few horses had escaped the paddock, so when Brno showed we only had 440hp left I thought well, there you are. Our target was to break the magic 500hp number, and pick up a few more torques along the way.

The car now is almost frightening.

Before Brno got his hands on it, I’d tweaked the exhaust, air intakes, supercharger belts, and some minor bits and pieces. We both researched online, and decided to throw in a supercharger pulley upgrade, to make sure we got 500 across the line. Stock torque is about 700nm, so obviously that was expected to increase.

The final outcome has been epic. 560hp and a touch under 900nm of torque.

She eats hills and spits them out, stretches and asks for more. Lag is almost completely gone, and a car that used to pause a bit before launch now launches even before you’ve finished pressing the accelerator.

This is still a 4 door that’s tractable around town (ok, a little twitchy in parking buildings) and you can burble down to the shops. But show her a motorway on-ramp and time stops while you move from here to there in a heartbeat. Off to the track shortly to explore what flat-out now looks like. We had a few hiccups till it all came together, but it’s been worth the wait – we’ve got the X in Xtremetuning!”

“Got to say a huge thank you to Brno. What a star he is. I mucked him around a bit on the timing of getting this done as once I forgot and the second time there was a death in our family but he was always so understanding.

Then when I finally get the tune done, I’m not sure what I was expecting……. having owned some big HP cars (R34 GTR, 996 911 etc) I know what can and can’t be done with a tune, but he did an amazing job. Flattened out the power delivery so it wasn’t so lumpy, more power overall, much better throttle response from the stupid e-throttle setup on this car and most of all dropped the average fuel use from between 10.2-11.0L per 100kms down to less than 8L per 100kms on the first tank through it………………….

Can’t recommend Brno and X-treme Tuning enough….. happy to talk to anyone about my experience or take people for a drive.”

“Love it! Nice and smooth. Thank you!”

“I Just got my golf gti remapped and its now the weapon it should have been, take off and acceleration is on another level, and it climbs hills effortlessly. The service is quick and professional, attention to detail is second to none. If your thinking about getting you car tuned then stop thinking and get in touch with these guys…. Now!”

“Took it the motorway last night for some max rate testing. Pulls well in 4th and 5th gear torque tests. Quite noticable change in nose attitude when delivering full power.”

“Quick and very easy to deal with. Thanks re mapping my ute I would have never known had you not bumped into me and explained what you could offer and now I’m thankful. Definitely drives like a different car and loving increased Hp and Torque.”

“Got my STX-550 Navara done last weekend what a big difference from the stock set up the power and torque is unbelievable it is a totally different ute to drive now on the open road or around town. I would recommend this service to anyone that wants more performance out of there vehicle.”

“I’m loving the car, such effortless power now!”

“Just had the Xtremetuning team deal to my ’13 Triton diesel turbo…….bloody hell its a weapon now! 30 more hp, 100nm more torque, wider power spread, drove to Palmy today-so much more grunt when passing, storms off from starts, never thought a jap diesel could make the heart flutter!! Last vehicle was HSV 4WD V8 Avalanche ute so the Mitsi was a step down in driving pleasure. …until now! Dont think it guys, just do it, its Christmas after all, ya know ya want to!”

“Fantastic service provided by Brno at Xtremetunign. My 2014 2.5 D40 Navara auto is a completely different machine now. Power from go to woah! and just a pleasure to drive. Mine was the first of the 32bit Navara’s he’s done and the process taken was careful and professional. I’d recommend their services to anyone who wants more from their vehicle.”

“Very impressed with the Audi’s performance, certainly had a fun ride home on Sunday… Thanks!“

“Hi man, I’ve been loving the extra grunt! Totally worth the investment eh. Sorry I meant to set up a time for pictures n stuff but I was in Auckland most of last week for a conference.”

“To whom it may concern,

 We have contacted Sheldon from First Class European Ltd about a performance upgrade on our company owned BMW X5 SUV and we discussed options with them in details. Our ultimate goal was to achieve the following:

• better fuel consumption
• deeper engine sound
• better performance overall

Since this request didn’t only require modifying parts of the vehicle but it also involved a software upgrade Sheldon brought Xtremetuning Ltd into the project, a team that is specialized in ECU remapping. We knew we are talking to the right guys once we started to see these people consulting with us regularly, paying attention to the details and giving us an affordable STAGE II tuning proposal that included some mechanical modification by First Class European Ltd and an ECU remapping by Xtremetuning Ltd. We accepted the quotation and they started to work…

We have been impressed how these guys can work together to reach the common goal. While one of them was re-building our BMW mechanically the other party put some sugar coating on by syncing the modified hardware components in the ECU map files. It was quite exciting to see how they pulled the vehicle apart and built it up again. Once we got the SUV back we started to use it and we are happy to confirm the following gains:

• The SUV has a very smooth gear shift after the mods
• previously we were able to travel from Wellington to Taupo by using 1 tank of fuel. Now we are able to reach Hamiton… BIG difference, it is the best fuel consumption we ever had on this vehicle.
• Vehicle launches off the mark much quicker. The torque gains is quite noticeable, but it also producing heaps more HP as it runs up the hill and it feels so effortless.
• Nice exhaust sound, loving it!

 Based on our experience we highly recommend these garages to anyone who’s interested in some serious gains in their vehicles. Thank you Sheldon and Brno!”

“Mate, my UTE is awesome, you can say whatever you want on your site. I love driving a diesel UTE , thanks heaps!”

“WOW! Feels good!!!

Very professional to deal with. I am very happy with the re-mapping process and I’m enjoying the increased HP increase in torque and smoother power band”

“Hey Brno, hows things? The ranger must have sorted herself out as its really really cranking now mate. Off the mark, its like a v8 haha. I also took my old mans ranger for a blast. Such a difference it feels more than 90nm.”

“Hi mate. Sorry took so long to reply but been busy. Well I noticed the difference in power straight of the mark on a flat bit of road. It is unreal what we have gained I was able to climb the hills a gear or 2 up on what I normally would be as for the fuel economy I used 50 litres less than I normally would with a heavy load down and light load back. But we will wait till the end of the month to see what the fuel bill is. But so far I am very impressed on what we have achieved on the truck. Cheers, Allan”

“Need any testimonials folks? My Ranger has never been better. My son borrowed at the weekend and was blown away compared to his Mazda Bounty“

“Helpfulness and professionalism is something I expect and look for when shopping around… When it comes to my car, my pride and joy! It best be next level. Well I can say that’s exactly what I got. Very helpful and insightful. Very professional and when I had questions, they were answered with full understanding and explanation. Results, WOW! Great throttle response, oodles of torque, and did I mention very fast! Thank you.”

“I’d like to thank the guys at Xtremetuning for the installation of a stage 1 performance remapping to my 2013 Holden Colorado Ltd Edition Extreme S.U.V. It’s a 2-wheel drive 6-speed auto. Before the chip, I found the turbo-lag a bit frustrating. Especially from a standing start. Also, when overtaking another vehicle from 80+ kph, the auto would scramble for gears that ran out of boost to soon, as the r.p.m rose above 3500. My concern was that once committed to an over-taking manoeuvre where there is only a small window of time to complete, I just didn’t have the confidence in my vehicle to execute with safety.

But now, with the chip? WOW! The turbo-lag is almost non-existent. Above 3500 rpm, especially in the higher gears, the engine keeps on pulling like a train. This is while going up hill on the Naraunga Gorge Wgtn, with a trailer filled with 550 kg of commercial roller garage door. Then having to brake hard upon realizing the rather high illegal speed incurred. I’m also glad my vehicle has traction control, as the warning light has become frequent part of my daily driving experience. Rather amusing with it off, wet ‘and’ dry. The only down side being my budget restraint on my rear tyres. So, thanks a lot guys at BRNO, Now I need a radar detector.”

“My PX Ranger now hauls in all the right places. Lag is so much less now! Hope the fuel savings offset the tyre wear now!”