STealthwerx Performance

STealthwerx Performance

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NORWICH, NORFOLK

Ford Specialist
Cars and Commercial
Custom ECU+TCU Calibrations
Mobile Option
Adblue, DPF, EGR, SCR Fault Diagnosis
Servicing
Diagnostics
Paintwork
Modifications - Supply + Fit
TRS Authorised Dealer We always try and achieve the best results for each car in every aspect, not just peak numbers on a dyno, but how the car feels to the individual. We are now able to offer custom TRS

Photos from STealthwerx Performance's post 07/07/2026

Stage 3 conversions are definitely our favourite job on these, and this one was hugely satisfying to complete!

Will's Fiesta , who travelled 4 hours from Portsmouth is actually a very convincing conversion, but from our point of view, its treated no different.

Already a strong car with 77k on the engine and fitted up with Stage 3 suitable hardware, we spent a lot of time on the pre-tuning checks before whipping the turbo off.

We had some discrepancy on cylinder 4 with the compression reading so a number of repeated tests we done before we were happy to proceed, a stock log and ECU data read confirmed the car was on a recall Mountune file and couldnt have performed better, so we knew it would be pretty special once done.

Turbo Technics was the obvious choice for the customer, we also went a bit different on the actuator, selecting a Forge Motorsport with a custom spring and preload to suit our requirements, this was all tied together with TRS Performance STG3 software with a 1.6 bar limit that would work reliably with the stock injectors.

This actuator turned out to be a perfect match and produced the best out the box boost profile we have seen and response on the road we were after with perfect transitional driveability and that hefty kick when depressed further on the pedal, this will more than likely become our default option moving forward.

We spend a lot of time in the background making these cars drive right first and tuning according to the data we collect, it isnt guesswork, its years of R+D and testing behind the scenes that's borderline obsessive , but that meant we didnt need to do anything else software wise to optimise the end result - Perfection.

TBH, I don't think Will was expecting it to be quite as strong as this for so little boost and timing, so we have a very happy customer who was glad he made the trip!

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Address


Unit 15 Drayton Industrial Park, Taverham Road
Norwich
NR86RL

Opening Hours

Monday 8:30am - 5pm
Tuesday 8:30am - 5pm
Wednesday 8:30am - 5pm
Thursday 8:30am - 5pm
Friday 8:30am - 5pm