Big Fish Tuning



Do you have a Mercedes C350 or E350 then get in touch as we’re finalising our new and improved gearbox and engine tuning suite and need people to test this through for us! For full details please click here

Our Black Friday Sale is now live!

£50 off all software until 1st December 2020! Call 01642 918566, use our Contact Form or email for more info and booking.

Engine & Gearbox Tuning Packages Have Returned!

Our Engine and Gearbox special offers are back and they’re better than ever! Prices from £400 for both the engine and gearbox tuning when done at the same time!


  1. F-Series only. For E-series BMWs please get in touch for quotations.
  2. Excludes M model BMWs


  1. Audi - Excludes S and RS Models

All pricing includes the rolling road, print outs and a pre-tuning check. Cannot be used in conjunction with any other offer or discount code. Offer pricing assumes that the vehicle is as standard, pricing on modified vehicles starts at +£50 on top of list pricing depending upon what has been modified.

Check out your potential gains! -

Back Open!

We are really pleased to announce that our new reduced contact tuning service is ready and we can now take bookings by phone, message, or by emailing

For more information into our changes please visit Covid-19 information page on the website.

Coronavirus/COVID-19 Update - 8th April 2020

Unfortunately we are currently closed in line with the current guidelines but we hope to be open again very soon! In the meantime, please do feel free to get in touch for any quotes or queries and we’ll do our best to assist you.

We also have a list of those who would like to be contacted to book in as soon as we’re back up and running. If you’d like to be added to the list just let us know!

We wish you all the best, and looking forward to seeing you soon!

In the meantime, be safe, look after yourselves and please follow all guidelines to protect everyone.

All the best,

John, Pip & Paul.

Coronavirus/COVID-19 Update - 18th March 2020.

FAO Customers/Colleagues/Visitors

At Big Fish Tuning, the health and safety of our customers and staff is vitally important. We are aware of the concern around coronavirus (covid-19) and are following guidelines set out by the Government and NHS. We are also implementing extra steps to help protect our customers and staff.

As such please be aware that we will be introducing the following temporary arrangements to protect our team and you, our customers:

Firstly, and most importantly, please do not visit Big Fish Tuning if you notice symptoms and/or have had any contact with a confirmed case of coronavirus within the last 14 days prior to falling ill and/or have been in a risk area:

  • Italy
  • Iran
  • China
  • South Korea
  • France: Region Grand Est (Alsace, Lorraine and Champagne-Ardenne)
  • Austria
  • Switzerland
  • Spain: Madrid
  • USA: States of California, Washington and New York
  1. The Big Fish Tuning waiting room will be closed until further notice. As such, any visitors to our Stokesley offices will be asked to make arrangements to leave site for the duration of your appointment.
  2. When dealing with site staff members we ask that you retain a 2 (two) meter safe distance as a courtesy for yourself and for our colleagues.
  3. As a precaution any keys, steering wheels, door handles and other contact points will be cleaned with an anti-bacterial wipe and/or spray. If you have any issues or allergies please inform our staff at the time of sign in.

We are currently only operating a drop off policy for tuning so far. We are more than happy to film your car, or take photographs on your behalf if you wish. For clarification this means you cannot hang around either outside or in around a the dyno areas even. We are only a small business and we all need to work together to minimise this risk.

We hope that you understand our concern and thank you for bearing with us during this chaotic time!

John & Team Big Fish Tuning Ltd

New Social Media Discount

We’re offering a £50 #discount on #customtuning for customers happy to have their cars photographed and recorded on the dyno! Send us a message or call 01642 918566 for more details!

BFT Package Deals Have Arrived

We’re pleased to announce that we’re launching a series of #packagedeals at Big Fish Tuning this week!

Quote the relevant Package Deal to take advantage of these awesome offers whilst they’re on!!

Cannot be used in conjunction with any other offer or discount. Discount price listed assumes vehicle is as standard, for non-standard vehicles please get in touch for a direct quote

Fiat 500 Tuning

Fiat 500 Abarth 1.4MT 161hp plus mods, all done live on the rolling road with prints outs

Thomas Potter - Sponsorship Appeal

Racing runs in the family in the Potter household! Here we introduce Thomas Potter (younger brother of Catherine whom we sponsor) who is currently hoping to gain sponsorship of his own from companies in the local area.

Thomas started@ racing when he was six years of age. First time out in a kart was in the wet and within a few laps he was already making remarkable improvements given his age and experience. Later that same day he was signed off and ready to move to the full-size track. Thomas is often up against kids with expensive race tuned engines however in Cumbria he won the final on a completely standard engine.

Thomas is currently the championship leader at Teesside and has won many races in his Bambino class. He gives 100% into everything he does, not only is he a fast driver, but at school he is exceeding in both Maths and English, often helping his classmates who are struggling.

Catherine has been working with Thomas in his 200cc cadet adjusting his lines, so he is ready for his next big step. Catherine is one of the quickest kids and she is showing him every little trick. The Two are going to work together next year to push together to get to the front as a team. However, the last lap could get interesting!!

If you’re interested in following Thomas’ journey or looking to sponsor a local, hardworking racer please do get in touch via Ben’s or Catherine’s social media page.

Book in with a friend and get £25 off per vehicle!

Expires on 31 Dec 2019 Friends get discount! Book in with a friend for £25 off per vehicle. For more information please call 01642 918566 or email Two cars, two discounts, two fwends.

Catherine Potter Sponsorship Announcement

We’re really pleased to announce our sponsorship of Catherine Potter, junior karting racer! Catherine has been racing since she was nine years old after starting out with local indoor kart track racing after school to her latest success as Driver of the Year in the Cumbrian Championship!

We’re so pleased to be part of Catherine’s team and onward journey. Catherine’s mission is to get to the front and stay there and she hopes that by doing so she can encourage more girls to have belief and the drive (no pun intended!) to do the same.

We hope you enjoy our short video showcasing Catherine’s amazing talent in the sport and we’ll continue to update you on her progress as she goes from strength to strength.

If you’d also like to sponsor Catherine so that she can continue on her mission you can do so by clicking here

Big Fish Wear

In response to the many enquiries from people asking if they can purchase our BFT uniform. We’re happy to announce the launch of our clothing brand Big Fish Wear! All designs are printed on demand, in the UK and to a professional print standard. Feel free to browse the range and if you don’t see what you’re looking for feel free to email any design suggestions to

£50 off for November

Back by popular demand we’ve brought back our £50 off any custom tuning package for the duration of November. To book in simply message us via one of our social media pages, use out contact form, or call us direct on 01642 918566.

Gains to Die For - Halloween Video 2018

It’s that time of year again so Happy Halloween everyone. We had a lot of fun making this years halloween video and hope you enjoy it. Can you guess the films used in the clips for the videos? There are 8 clips from horror movies both old and new used in our Halloween video this year. DM your answer, like and share and recieve a free Big Fish sticker!

A Big Fish Summer

It’s nearly time for the summer holidays and we all have so much to look forward to… To celebrate we’re offering £50 off custom tuning packages on ANY FAMILY CAR when you book in between July and August 2018! For more details or to discuss your car please get in touch through our social media channels or call us on 01642 918566.

FDL Coding now Available!

Great news! We can now offer FDL coding on all f-series BMWs! For full details please click on the ‘Our Services’ section of the website where you will find a comprehensive list of what’s on offer*

Pricing starting from £50 per vehicle.

For all other coding options please do enquire on 01642 918566

*These options are vehicle specific and may not be compatible with all F-Series BMWs.