JA Custom Tuning

19/05/2026

13/05/2026

We had this beautiful red mk7 Gti in for stage 1 Dyno tuning session couple of months ago. We have a lot of Dyno content back logged for posting. If you want your car tuned on the Dyno, give us a shout

05/05/2026

Track ready 420d in for DPF gutting and Dpf mapping with hardcut map. It previously had backbox and mid box deleted along with a stage 1 map. Weve retained his stage 1 map and added the Dpf map and hardcut map on it. Now this is fully straight through. Hardcut sounds wild 👌🏼

24/04/2026

Another 35d n57 in for Dpf gutting and performance tune. Small turbo screaming 😮‍💨on idle it sounds like a jet engine

20/04/2026

BMW 435d x drive n57 fully transformed at JA CUSTOM TUNING. Fully straight through so small turbo is always screaming 🙀, x drive grip with our bespoke in house developed performance tune and xHP stage 3 it stings off the line - can’t even breath 😮‍💨😮‍💨

✔️ WE OFFER VARIOUS AUTOMOTIVE SERVICES, PLEASE SCROLL THROUGH OUR PAGE FOR TONNES OF EXAMPLES

✔️ LIVE/CUSTOM FULLY BESPOKE DYNO TUNING WITH MASTER TOOLS, IN HOUSE FILE WRITER, SOFTWARE TUNING ON THE SPOT ACCORDING TO ENGINE’S RESPONSE AND OWNER’S DRIVING STYLE - Stage 1 FROM £199.99

✔️ WE’RE ONE OF THE VERY FEW COMPANIES IN UK THAT DEVELOP FILES IN HOUSE AND SUPPLY FILES TO OTHER REMAPPERS WORLDWIDE. WE’RE A SOFTWARE TUNING FACTORY. EVC WINOLS LICENSE NUMBER: 22549

✔️ Check your vehicles gains: https://jacustomtuning.co.uk/gains%2Fquote

✔️ HUNDREDS OF FEEDBACKS

✔️ CUSTOM EXHAUSTS - RES, BACK-BOX DELETES, DUAL EXHAUST, QUAD EXHAUST, DECAT, DPF GUTTING ETC

✔️ REMAPPING DEALERS WORLDWIDE

✔️ GEARBOX TUNING BMW & VAG FROM £199.99 & XHP FROM £279.99

✔️ DYNO RUNS

✔️ ADD ONS - DPF EGR ADBLUE (£249.99) DECAT NOX FAULT CODES. POPS AND BANGS, FLAMES, HARDCUT, SPEED LIMITER, REV LIMITER FROM £149.99 OR £49.99 EXTRA ( off road use only )

✔️ VAG med9 med17 simos18 launch control, rally launch, multi maps etcs

✔️ MILEAGE CORRECTIONS, MILEAGE BLOCKERS - CHANGE MILEAGE ON CLUSTER. ALL MAKES

✔️ ECU TCU CLONING

✔️ KEY PROGRAMMING

✔️ SMOKE TEST DIAGNOSTICS, ENGINE CARBON CLEAN, VEHICLE INSPECTION £50 EACH

✔️ MECHANICAL WORKS: vehicles servicing, brakes, Diagnostics, body kits etc

✔️ ELECTRICAL WORKS - F1 lights, Dashcams, immobiliser, trackers, wirings etc

✔️ Can phantom immobilizer ( pin input on cars )

✔️ BMW - key programming, cluster upgrade, mileage, cloning, red dot fix, Virginising.

✔️ CODING: BMW & VAG Group- Unlock features. CAR PLAY BMW MERCS VAG

✔️ FILE SERVICE - START YOUR OWN REMAPPING BUSINESS

✔️ EVC WINOLS RESELLER

Ts & Cs Apply

www.jacustomtuning.co.uk

18/04/2026

Another bmw f20 116i n13 in for downpipe installation, uprated intercooler installation and we previously done stage 1 pops on it last year, we checked the cat, cat was still in good condition. N13 and cars equipped with n13 is one of our favorite and most common engine/car we tune in terms performance or exhaust mods. You can scroll through our page for years and you’ll still find n13 content.

5% follower discount for limited time - Ts & Cs apply

✔️ WE OFFER VARIOUS AUTOMOTIVE SERVICES, PLEASE SCROLL THROUGH OUR PAGE FOR TONNES OF EXAMPLES

✔️ LIVE/CUSTOM FULLY BESPOKE DYNO TUNING WITH MASTER TOOLS, IN HOUSE FILE WRITER, SOFTWARE TUNING ON THE SPOT ACCORDING TO ENGINE’S RESPONSE AND OWNER’S DRIVING STYLE - Stage 1 FROM £199.99

✔️ WE’RE ONE OF THE VERY FEW COMPANIES IN UK THAT DEVELOP FILES IN HOUSE AND SUPPLY FILES TO OTHER REMAPPERS WORLDWIDE. WE’RE A SOFTWARE TUNING FACTORY. EVC WINOLS LICENSE NUMBER: 22549

✔️ Check your vehicles gains: https://jacustomtuning.co.uk/gains%2Fquote

✔️ HUNDREDS OF FEEDBACKS

✔️ CUSTOM EXHAUSTS - RES, BACK-BOX DELETES, DUAL EXHAUST, QUAD EXHAUST, DECAT, DPF GUTTING ETC

✔️ REMAPPING DEALERS WORLDWIDE

✔️ GEARBOX TUNING BMW & VAG FROM £199.99 & XHP FROM £279.99

✔️ DYNO RUNS

✔️ ADD ONS - DPF EGR ADBLUE (£249.99) DECAT NOX FAULT CODES. POPS AND BANGS, FLAMES, HARDCUT, SPEED LIMITER, REV LIMITER FROM £149.99 OR £49.99 EXTRA ( off road use only )

✔️ VAG med9 med17 simos18 launch control, rally launch, multi maps etcs

✔️ MILEAGE CORRECTIONS, MILEAGE BLOCKERS - CHANGE MILEAGE ON CLUSTER. ALL MAKES

✔️ ECU TCU CLONING

✔️ KEY PROGRAMMING

✔️ SMOKE TEST DIAGNOSTICS, ENGINE CARBON CLEAN, VEHICLE INSPECTION £50 EACH

✔️ MECHANICAL WORKS: vehicles servicing, brakes, Diagnostics, body kits etc

✔️ ELECTRICAL WORKS - F1 lights, Dashcams, immobiliser, trackers, wirings etc

✔️ Can phantom immobilizer ( pin input on cars )

✔️ BMW - key programming, cluster upgrade, mileage, cloning, red dot fix, Virginising.

✔️ CODING: BMW & VAG Group- Unlock features. CAR PLAY BMW MERCS VAG

✔️ FILE SERVICE - START YOUR OWN REMAPPING BUSINESS

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13/04/2026

2x bmw e90x 30d in for gearbox service with genuine zf parts supplied and fitted including mechatronic sleeves, finger sleeves, bridge seals, pan filter, zf lifeguard 6 oil, & bolts. stage 3 XHP tune, and stage 1 performance Ecu tune. As always everything torqued up to zf spec and tightening sequence. We’ve been servicing these 6hp for years, done tonnes of them, however lately not seeing many customers with 6hp, as new cars with 8hp box much more common. We also service tonnes of 8hp boxes

About time to service your gearbox ? Give us a shout

10/04/2026

F80

09/04/2026

440i and M140i in for res delete, 440i non opf model so double res delete ( must on b58 non opf ) and m140i in for opf gutting/delete and res delete with opf delete map ( sounds very similar b58 double res delete ). That’s the combo all our b58 customers go for, we’ve done countless of these.