Evolution Diagnostics and Tuning

24/07/2026

VW Golf GTI in for Stage 1 Dyno Tuning

This one came in last week initially after being mapped elsewhere but not feeling right with him saying it feels like it only starts boosting at 4000rpm.

With it being IS20 and still having stock components at the time, we knew that did not sound right. 3 flashes on the ECU count and upon datalogging we found it to be running lean at up to 27% through the whole run with boost setpoint flatlined through the whole rev range and actual dropping off massively top end, withdrawing timing through the whole range of up to 6 degrees.

We knew this was a generic flash attempt with no data logging done pre and post to ensure the vehicle was running healthy 🤦🏼‍♂️

We told him about what we had found and he decided that he would rather get it done properly and seeing what we have done previously from our posts, knew we would get the job done.

Due to it running lean by so much, we recommended a fresh set of plugs prior to tuning.

Onto dyno tuning:

Running their tune up first to see the figures it was making and although the figures are not bad on paper, the data logs and delivery of power on the road said otherwise.
Flashed back to stock to get a baseline and make sure all values were as they should be with no anomalies.

The customer also wanted crackles on sport mode and with this being on 259 software, it does not allow for impulse combustion.
Once cross flashed to 259C to allow for crackles on sport mode, we loaded our base file on.

Base file making 319bhp with 0 timing withdrawal, boost pressure following actual, fuel trims perfect, all values as should be.

A couple revisions later, we ended up on a very healthy 325.4bhp and 503.1nm.

With this being a manual and unsure if clutch was stock, We kept the boost curve as linear as possible aiming for a stable amount of torque whilst not having any clutch slip whatsoever.

Sorry for the lack of posts of dyno tunes, all the ones that have been booked in have had to be turned away due to having issues which prevent tuning, but all will be coming back once sorted! So this was the first one i have completed on the dyno since coming back off holiday 😂

19/07/2026

BMW M140I for Stage 1 ECU + TCU

This beautiful low mileage M140I came in to liven it up a little bit!

Stock coming in at 334.3bhp and 513.4nm.

Once checking logs and seeing everything was as it should be with nothing untoward, We proceeded on with tuning.

Finishing up on 419.6bhp and 620.2nm with TCU accompanying the power with quicker shift speeds, torque limiters raised.

Gear display activation to top it off 💪🏻

Once all tuned, we took it on the road. This was an animal with it even breaking traction low end of third!

Always a pleasure tuning these!

18/07/2026

Audi A4 136bhp in for Stage 2 Tuning + DPF back system 🤌🏼

Jake was hard at work the first day, fabricating the exhaust system on this to give it some deep tone and volume 👌🏻

Onto tuning, this had a tune on already with solutions applied, making decent figures but we knew there was more to get out of it and even though the delta gains don’t look huge, the difference was big.

On the previous tune, whilst road testing, it would die off massively top end feeling as if it would just run out of puff.

We wanted as much volume between both theirs and ours whilst keeping everything perfectly safe.

Ending up on a healthy 200.6bhp and 465.4nm!

Now pulling hard through the rev range all the way to redline without feeling like it dies off top end 💪🏻

Deep idle applied to help with noise whilst idling.
Popcorn applied for a fun factor 😉

15/07/2026

15/07/2026

EVO Gel Badges now in stock!!!

£5 per badge (£5 + postage)

Come get yours 🫡

If you are wanting one posting to you please drop us a message and we will send you a link and get them shipped to you!

13/07/2026

New Exhaust ID plates made by Air Movement & Fabrications Ltd for our custom Powerflow exhaust systems 👌🏼

11/07/2026

Skoda Octavia VRS for Stage 1 ECU + TCU

Ambient temps at 32 degrees so this was a battle against intake air temps.
After plenty of revisions finding the perfect amount of timing that the car likes, we ended up on 299.8bhp and 478.2nm!
If this was ran up on a cool day, say less than 20 degrees celsius, it would easily would of seen another +15bhp so once the weather gets a bit cooler, i’m sure the customer will notice that.

Huge volume through the whole range, transforming how it drove on the road!
Customer chuffed to bits with it now 👌🏻

08/07/2026

https://www.facebook.com/share/r/198z5gtEfJ/?mibextid=wwXIfr

03/07/2026

Mini Cooper JCW in for Stage 1 Dyno Tuning.

P.S i’m on holiday at the moment so posts may be a little slower, especially after the cocktails 😂

Last week we fitted an airtecmotorsport induction kit + intercooler on this.

On these, the stock airbox is more than sufficient and most of the time you will not receive any performance gains from an intake on this platform so noise is the main factor. intake air temps were massively lowered though helping with consistent power without the risk of heat soak compared to stock intercooler.

Awesome gains with an increment of 74.8bhp and 141.5nm!

Another JCW turned into a pocket rocket 🤌🏼

02/07/2026

Golf MK6 1.4TSI for stage 1 tuning

Even though the gains aren’t huge, the difference on the road is night and day.

0.8bar tailed off with huge amount of volume in low end torque as well as the power curve completely transforming when tuned.

Minimal timing adjustments due to being on 95ron