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Most remapping websites won't show you this, because there's nothing to show. Here's ours.

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A working unit, not a reception

Barrow Bridge Industrial Estate is where we build and run race cars, so the unit looks like what it is. There will usually be something mid-build in the corner and a gearbox on a bench.

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Your car goes on a ramp, under cover, in the same space. That means we can get underneath it, get a proper look at the pipework and the intake, and put it back down knowing what we're dealing with before anyone opens a laptop.​​​​​​​​​​​​​​​​​​​​​​

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What happens when you arrive

  1. Park up and come in. Someone who works on cars will talk to you.

  2. We'll ask how you use the car and what you want from it.

  3. The car goes up and we look at it before agreeing anything.

  4. If we find something worth telling you about, you hear it then, not afterwards.

  5. We read and store your original file, write the map, and road test it.

  6. We go through what's changed with you before you drive off.

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Finding us

MacG Racing Ltd, Barrow Bridge Industrial Estate, Sinfin Lane, Barrow upon Trent, Derbyshire DE73 7HH.

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  • From Derby about fifteen minutes.

  • From the A50 about five minutes.

  • From M1 junction 24 about fifteen minutes.

  • If you know Donington Park, we're roughly ten minutes away.

Opening hours

Monday: 8:30 am–5 pm

Tuesday: 8:30 am–5 pm

Wednesday: 8:30 am–5 pm

Thursday: 8:30 am–5 pm

Friday: 8:30 am–5 pm

Saturday: Closed

Sunday: Closed

© 2026 MacG Racing Ltd. All rights reserved.Topgear Tuning East Midlands is a trading name of MacG Racing Ltd, registered in England and Wales, company no. 07159006. Registered office:  MacG Racing Ltd, Barrow Bridge Industrial Estate, Sinfin Lane, Barrow upon Trent, Derbyshire DE73 7HH. VAT no. 995 9217 56.

Topgear Tuning East Midlands

01332 691061

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