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Monday 7am - 6pm Tuesday 7am - 6pm Wednesday 7am - 6pm Thursday 7am - 6pm Friday 7am - 6pm Saturday 7am - 6pm Sunday 7am - 6pm

MAC Tuning

Specialist ECU tuning and remapping company based in Hertfordshire. Contact us for more info!

15/05/2026

Stunning BMW 335i in with us for our full stage 1 and gearbox tuning package!

Power output now sitting at 370bhp and 500nm, a huge improvement over the factory stock software 📈

Drop us a message to discuss yours! 🔥
- Klarna ✅
- Clearpay ✅

For all enquiries:

📞 01707502665
💻 www.mac-tuning.co.uk
📧 [email protected]

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29/04/2026

Ford Mustang 🐎 In with us for a stage 1 performance tune, unlocking a sharper, more responsive drive while keeping everything smooth and usable for daily road use.

The 2.3L variants respond really well to tuning, with strong gains available through adjustment of boost control, ignition timing, torque limits and throttle response — all while keeping the power delivery progressive and of course reliable!

Drop us a message to discuss yours! 🔥
- Klarna ✅
- Clearpay ✅

For all enquiries:

📞 01707502665
💻 www.mac-tuning.co.uk
📧 [email protected]

01/04/2026

Audi S4 B9 in with us for our performance tuning package! We’ve lost count of how many of these EA839 engines we’ve done now, but they are absolutely one of the best engine and gearbox combinations to tune!

A complete overhaul of how power is produced, delivered and feels makes each owner realise how muted the stock 354bhp feels. Our tuning pushes these up to around 420bhp and 600nm, a huge improvement from stock.

As well as the software tuning, there are a huge range of modifications readily available for these engines to push power and reliability even further.

If you’ve got one and you’d like to discuss the options or take a look over our own S4 and what’s available then just drop us a message!

08/03/2026

Mercedes GLE 300D in for our performance tuning package! These are a huge heavy beast of a car and come standard with a restricted 245bhp and 500nm.

Our tuning on these models transforms them for the better, unlocking an extra 100nm more torque across the whole range and pushing power up to 300bhp…much more reasonable for a hefty SUV!

Gear changes now smoother and faster than ever along with improved responsiveness, just how these should roll out the factory 👌🏼

Drop us a message to discuss yours! 🔥
- Klarna ✅
- Clearpay ✅
-
For all enquiries:

📞 01707502665
💻 www.mac-tuning.co.uk
📧 [email protected]

04/02/2026

Audi RS5 B9 in with us for a huge package!

Starting off with an engine oil and filter change to make sure it’s being kept well maintained. These can suffer from early rocker arm wear and failure. Often caused by a combination of very thin stock 0W20 oil and high operating temps. We like to upgrade this to a 30 or 40 spec weight instead, offering greater protection and smoother running on these 2.9L and 3.0 variants.

Next up was the engine and gearbox tuning, rolling out the factory with 450bhp and 600nm on a twin turbo setup leaves us a lot of room to safely improve. Our stage 1 tuning pushes these up to 530bhp and 750nm, a massive improvement from standard setup.

Drop us a message to discuss yours! 🔥
- Klarna ✅
- Clearpay ✅
-
For all enquiries:

📞 01707502665
💻 www.mac-tuning.co.uk
📧 [email protected]

31/01/2026

Audi RS4 B7 4.2 V8 🔥

Incredible manual RS4 in with us for our performance tuning, with power already sitting at 415bhp stock on these, we tend to see an increase pushing them up to the mid 400 horsepower range.

Upgraded induction kit being fitted in the coming days will help boost it a bit further!

Drop us a message to discuss yours! 🔥
- Klarna ✅
- Clearpay ✅
For all enquiries:

📞 01707502665
💻 www.mac-tuning.co.uk
📧 [email protected]

01/01/2026

Audi S3 8Y in for our stage 1 tuning package! These are mega cars and fast in their stock factory format, our performance tuning builds upon this and opens the door to huge range of improvements.

Boosting the power up to 380BHP & 500NM brings this car alive, refined throttle response, reduced lag and a much stronger mid-range.

No hardware changes required — just an S3 that finally delivers the performance it should of always had 🔥

25/11/2025

Stunning Ford Ranger Deranged edition in with us for a mighty overhaul package!

We’ve tuned hundreds of these over the years and the benefits are incredible compared to factory standard. This one underwent our stage 1 engine & gearbox tuning, EGR solution and an Adblue Solution as well as a major service ✅

Now performing at its peak with a much more refined throttle response, crisper power delivery and stronger torque 🔥

Drop us a message to discuss yours! 🔥
- Klarna ✅
- Clearpay ✅
-
For all enquiries:

📞 01707502665
💻 www.mac-tuning.co.uk
📧 [email protected]

20/11/2025

🎉 8K GIVEAWAY! 🎉

To celebrate hitting 8,000 followers we’re giving one of you a £300 tuning voucher! 🔥

How to enter:
🔴 Follow our page
🔴 Like this post
🔴 Tag 2 friends in the comments
🔴 Share to your story AND tag us!

Prize:
💷 £300 tuning voucher for the winner
Applicable only for ECU & TCU tuning, not for products on our website.

• Winner will be picked at random from comments once we reach 8k followers!
• Voucher valid for 1 year

17/11/2025

It’s been a crazy start to November and with our Black Friday sales here are just some of the cars that are rolling through our doors every day!

We’re halfway through the month and the remainder is filling up fast, drop us a message and we’ll happily discuss the options for your vehicle.

Drop us a message to discuss! 🔥
- Klarna ✅
- Clearpay ✅
For all enquiries:

📞 01707502665
💻 www.mac-tuning.co.uk
📧 [email protected]

Address

Mac Tuning, Church Farm, Stevenage
Ardeley
SG27AH

Opening Hours

Monday	7am - 6pm
Tuesday	7am - 6pm
Wednesday	7am - 6pm
Thursday	7am - 6pm
Friday	7am - 6pm
Saturday	7am - 6pm
Sunday	7am - 6pm

Website

http://www.mac-tuning.co.uk/

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