JA CUSTOM TUNING
JA CUSTOM TUNING
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    • Home
    • Gains/Quote
    • Services
    • Dealer Locator
    • Start Remapping
    • Trucks Buses Tractors
    • FAQ
  • Home
  • Gains/Quote
  • Services
  • Dealer Locator
  • Start Remapping
  • Trucks Buses Tractors
  • FAQ
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WELCOME TO JA CUSTOM TUNING

WELCOME TO JA CUSTOM TUNINGWELCOME TO JA CUSTOM TUNINGWELCOME TO JA CUSTOM TUNING

WELCOME TO JA CUSTOM TUNING

WELCOME TO JA CUSTOM TUNINGWELCOME TO JA CUSTOM TUNINGWELCOME TO JA CUSTOM TUNING

What is ECU Tuning/Remapping?

The engine is the hardware and the ECU ( Engine Control Unit) contains the software which controls the engine by taking readings from various sensors, processing the information and then instructing hardware components such as injectors, coils, actuators to perform according to the data in the software in order to run the engine correctly. Inside the software we find calibration datas, which we decode and put them into tables on file editing softwares like WinOls, such as boost/load, torque, fuelling, ignition timing tables and of course their limiters. These datas are just request to the engine, every engine will follow and perform by these data requests according to their mileage, heath & maintenance

What makes us stand out from other Remappers/Tuners ? and why come to us ?

  

  • In house master file/software/calibration writer, editor, tuner, and supplier.
  • We use genuine state of the art master tools ( Autotuner, Flex, Kess, PCM flash etc ) and our files are open
  • We develop and tune your file’s data in house live/custom/bespoke on the spot ( you can watch us tune your file which almost no other remapper will allow as most of them are not file developers themselves ). We tune files on genuine WinOls, ECM, ECUDecoder, MTX, Swiftec, Stage x etc - according to your driving style and engine's response. As a result, we can keep our prices low. Whereas 80% of our competitors, they have to buy the files as they're not the file developers themselves. We often show the files data on our posts and stories; unlike our competitors.
  • We supply tuning file services to other Remappers in UK and around the world to our authorized dealers and independent remappers
  • Some remappers may pretend to be file writers themselves which can mislead customers. If you're looking for a proper bespoke tuning by a file writer, you can ask the remapper: if he is a master file writer himself, can he tune your file in front of you and to present their Winols license certificate ( Like our one at the bottom of this page ).
  • Our file tuning thresholds are dyno tested, we tune vehicles on our road hub dyno and also tune cars remotely on our dealers dynos ( Dyno Graphs Gallery Below ) 



Tuning Options & Prices

  • CUSTOM EXHAUST WORKS  - SINGLE PIPED RES DELETE FROM £79.99, DOUBLE PIPED RES £159.99
  •  BACKBOX DELETE SINGLE PIPED/SIDED FROM £159.99. DUAL SIDED BACKBOX DELETE FROM £329.99. DUAL EXHAUST CONVERSION FROM £329.99, QUADS CONVERSION FROM £349.99. DUAL/QUAD EXIT DIFFUSER IS NOT INCLUDED, IF WE HAVE ANY IN STOCK ITS £130 EXTRA FOR SUPPLY & FIT
  • DIFFUSER INSTALLATION SUPPLIED BY CUSTOMERS FROM £29.99 (BMW VAG). MERCS AMG DIFFUSER INSTALLATION £119.99
  •  EXHAUST VALVES SYSTEM FROM £299.99 
  • ALL PRICES INCLUDE STANDARD CHROME TIPS.  WE ALSO HAVE DIFFERENT DESIGNS AND SIZES OF TIPS AT ADDITIONAL COST . PLEASE NOTE PRICES MAY DIFFER BETWEEN CARS DEPENDING ON PIPE SIZE AND LENGTH REQUIRED.  


Why come to us for custom exhaust works? Because we use the highest grade T304 stainless steel exhaust piping and even stainless steel welding wires which comes with life time warranty. Not every place use t304 stainless pipes due to its cost, some use cheaper mild steel which will rust.


Trucks, buses, and agriculture vehicles tuning for  performance, fuel economy, ADBLUE, NOX, DPF, EGR SOLUTIONS ( for off road use )


Cars & Vans prices

  • STAGE 1 - Performance Tune, 50/50 Tune & Eco Tune - Stock Engines From £199.99
  • STAGE 2 - Modified engines - Downpipe, Intake, intercooler etc From £269.99 ( off road use )
  • STAGE 3 - Hybrid turbo, Intercooler etc  from £349.99
  • BENCH MODE From Extra £49.99 & BOOT MODE From Extra £99.99
  • HIGH PERFORMANCE CARS 400hp+ From £99.99 Extra
  • SOLUTIONS - DPF, EGR, CAT, O2, NOX, Fault codes, OPF/PPF, Cold start noise, speed limiter, neutral rev limiter, stop/start system, hot start fix etc From £49.99 Extra or From £149.99 Alone (off road use only)
  • AdBlue  delete £249.99. or £299.99 with stage 1 (off road use only)
  • ADD ONS - Pops & Bangs, Hardcut/Popcorn limiter, Flames, Sports Display Calibration, Launch Control etc  From £49.99 Extra or From £149.99 Alone ( off road use only )
  • VAG 1.8T, 2.TFSI, 2.5TFSI, 2.TSI MULTI MAP SOLUTIONS from £599.99
  • SWITCHABLE POPS ON SOME BMWS AND VAG CARS ( off road use only ) from  £79.99 EXTRA OR £199.99 ALONE (off road use)
  • ORIGINAL FILE UPLOAD OR FILE EDITS From £79.99
  • DATA LOGGING £29.99
  • PRE-TUNE HEALTH CHECK ( SMOKE TEST, DIAGNOSTIC SCAN & VISUAL INSPECTION ) From £49.99
  • REMAP CHECKING AND ANALYSING from £99.99
  • Dyno Runs £69.99. dyno runs before and after tuning £99.99
  • GEARBOX TUNING - BMW & VAG From £199.99. XHP flash BMW (E + F SERIES 6 & 8HP ) £279.99. DCT OR G series £349.99 
  • FILE SERVICE - For Other Remappers Worldwide From £39.99
  • WINOLS DAMOS FOR ALMOST ANY ECU £29.99
  • WINOLS RESELLER DATABASE PROJECTS FROM £30
  • BMW & VAG CODING From £19.99
  • GENERAL MECHANICAL & ELECTRICAL LABOUR RATE £69.99 PER HOUR
  • MILEAGE CORRECTIONS VIA OBD FROM £99.99. CLUSTER OFF FROM £199.99, BMW & MERCS £249.99



PLEASE NOTE THESE ARE OUR CURRENT INSTORE PRICES, OUR REMAPING DEALER'S PRICES COULD BE DIFFERENT


Please follow us on Instagram and watch our stories we often put special limited time offers & discount codes

SPECIAL WEB COMBO OFFERS FOR A LIMITED TIME

BACKBOX AND RES DELETE £10 OFF

REMAP AND ENGINE SERVICE £10 OFF

ENGINE AND GEARBOX REMAP £20 OFF

GET £10 OFF FROM OUR PRICE LSIT WHEN YOU GET BACKBOX AND RES DELETE AT THE SAME TIME. PLEASE QUOTE COMBO10 TO QUALIFY FOR THIS OFFER

ENGINE AND GEARBOX REMAP £20 OFF

REMAP AND ENGINE SERVICE £10 OFF

ENGINE AND GEARBOX REMAP £20 OFF

GET £20 OFF FROM OUR PRICE LIST WHEN YOU GET YOUR ENGINE AND GEARBOX TUNED AT THE SAME TIME. PLEASE QUOTE COMBO20 TO QUALIFY FOR THIS OFFER

REMAP AND ENGINE SERVICE £10 OFF

REMAP AND ENGINE SERVICE £10 OFF

TRACKER AND CAN PHANTOM PIN INPUT IMMOBILISER £20 OFF

GET £10 OFF FROM OUR PRICE LIST WHEN YOU GET YOUR OIL CHANGED AND REMAP DONE AT THE SAME TIME. PLEASE QUOTE COMBO10 TO QUALIFY FOR THIS OFFER

TRACKER AND CAN PHANTOM PIN INPUT IMMOBILISER £20 OFF

TRACKER AND CAN PHANTOM PIN INPUT IMMOBILISER £20 OFF

TRACKER AND CAN PHANTOM PIN INPUT IMMOBILISER £20 OFF

GET £20 OFF FROM OUR PRICE LIST WHEN YOU GET CAN PHANTOM IMMOBILISER AND GPS TRACKER AT THE SAME TIME. PLEASE QUOTE COMBO20 TO QUALIFY FOR THIS OFFER

REMAP AND ANY OTHER SERVICE £10 OFF

TRACKER AND CAN PHANTOM PIN INPUT IMMOBILISER £20 OFF

REMAP AND ANY OTHER SERVICE £10 OFF

GET £10 OFF FROM OUR PRICE LIST WHEN YOU GET A REMAP AND ANY OTHER SERVICE AT THE SAME TIME. PLEASE QUOTE COMBO10 TO QUALIFY FOR THIS OFFER

REMAP AND SPECIFIED SERVICES £20 0FF

TRACKER AND CAN PHANTOM PIN INPUT IMMOBILISER £20 OFF

REMAP AND ANY OTHER SERVICE £10 OFF

GET £20 OFF FROM OUR PRICE LIST WHEN YOU GET A REMAP AND ANY OF THESE LISTED SERVICES AT THE SAME TIME (REMAP +  TRACKER, ANY IMMOBILISERS, FULL VEHICLE INSPECTION, FULL SERVICE, SMOKE TEST, CARBON CLEANNG, DASHCAMS, DECATTING, BACKBOX DELETE. PLEASE QUOTE COMBO20 TO QUALIFY FOR THIS OFFER

Some Dyno Results From Our Dyno Pro - Mobile Road Hub Dyno

    Wall Of Flame - We specialise in developing & Supplying files for insane mods like Pops & Flames for our customers and other remappers worldwide

    LEON FR 2.0 TFSI BWA FLAME FILE DEVELOPED BY JAY

      Some Of The Feedbacks We Have Received

        Videos - More examples on our Intaragm & Facebook

        COMPILATION VIDEO CONSISTING VARIOUS EXAMPLES OF OUR SERVICES

        Please watch the full video to see examples of our exhaust works, tuning works, mileage correction works and more

        BMW 428i N20 Pops On Sport Mode

        Switchable Pops And Bangs On Sport Mode For BMW 428i And Other BMW Turbo Petrols. Solution developed In house after months of hard work.

        2017 BENTLY CAN PHANTOM IMMOBILZER

        BENTLY REQUIRES PASSWORD INPUT USING FACTORY BUTTONS TO START

        Switchable pops and bangs on MED17.5 ECU

        Pops and bangs enabled and disabled with the AC/Fan button On MED17.5 ECU (MK6 golf GTI engine/ECU on any VAG group car) Solution developed in house after months of trials

        MULTI MAP SOLUTION ON MED9.1 ECU 2.TFSI

        MULTI MAPS SOLUTIONS ALSO AVAILABLE ON OTHER VAG CARS SUCH AS 1.8TS, 2.TFSIS, 2.5TFSI, 2.TSi ETC

        FOCUS ST 225 POP & FLAME

        File writer Jay developed the file in house front of the owner to make this ST pop & flame

        MILEAGE CORRECTIONS

        2019 YARIS CLUSTER DISASSEMBLED AND MILEAGE CORRECTED

        BMW M140i

        This monster was brought to Jay for v bars wrap, diffuser & spoiler installation and in house live/custom stage1 performance tuned to around 420hp with sports display calibration

        BMW 118i POPS & FLAMES

        File writer Jay developed the file for pops and flames on this 118i

        F1 LIGHT

        SMOKED F1 LIGHT INSTALLLED ON F10

        BMW 640D

        Dual Dashcam, Remote Engine Immobiliser Tracker, Brake Pads & Full Major Engine Service Carried Out By Jay

        2013 AUDI TT FLAME

        FLAME FILE DEVEOPLED BY JAY FOR ANOTHER REMAPPER

        CUSTOM EXHAUST WORK EXAMPLES

        BMW F20 1 SERIES IN FOR DUAL EXHAUST CONVERSION

        BMW E60 535D IN FOR FULL CAT BACK SYSTEM WITH QUAD EXHAUST

        MK7.5 GOLF 1.4TSI IN FOR DUAL EXHAUST CONVERSION ( GTI STYLE )

        BMW F20 116I IN FOR RES DELETE WITH SWITCHABLE EXHAUST VALVE SYSTEM - MAKE THE CAR QUITER OR LOUDER USING A REMOTE

        BMW F32 420I IN FOR DUAL EXHAUST CONVERSION

        AUDI A7 IN FOR QUAD EXHAUST WITH F1 LIGHT DIFFUSER

        BMW 420I IN FOR RES DELETE, BACKBOX DELETE & POPS AND BANGS

        BMW E90 330I IN FOR BACKBOX DELETE

        BMW F32 420D IN FOR DUAL EXHAUST CONVERSION

        MK7 GTI IN FOR RES DELETE

        Our Certificate Of Genuine WinOLS License - File Tuning Software

        • Terms & Conditions
        • Reviews

        Follow Us On Facebook Or Instagram For Latest Work

        Unit 26 Readmans Inustrial Estate RM18 8QR

        Tel: 01375517443 Email-info@jacustomtuning.co.uk

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        SPECIAL BLACK FRIDAY DEAL £50 OFF ON ALL CUSTOM REMAPS

        OFFER ENDS ON SATURDAY 23RD, PLEASE QUOTE BF50 TO QUALIFY FOR THIS DEALL

        BOOK NOW!