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CHOOSE CURRENCY 
Price range: $995.00 through $2,258.00
Choose your model to see available options.
CRANK PULLEY BOLTS TORQUE SPEC: 48FT/LBS
PLEASE VIEW PRODUCT IMAGES FOR OEM CRANK PULLEY ID
DYNO CHARTS SHOW COMPARISON OF 380BHP V6S AND VELOCITYAP TUNED SOFTWARE & PULLEY OPTIONS. BASE 340BHP MODELS WILL ACHIEVE THE SAME FINAL FIGURES.
RECOMMENDED UPPER PULLEY INSTALL TOOL: https://www.velocityap.com/product/installation-tool-for-jaguar-landrover-supercharger-upper-pulley/
Picture yourself in the driver’s seat of your Jaguar or Land Rover, whether it’s an F-Type, F-Pace, XE, XF, Range Rover, Velar, Discovery, or another model powered by the 3.0-liter AJ126 supercharged V6. You turn the key and instantly feel the calm confidence of a premium supercharged engine. Now imagine unlocking the hidden potential beneath that calm exterior, transforming everyday drives into spirited, unforgettable experiences. That’s exactly what the 3.0L V6 Supercharged Jaguar/Land Rover AJ126 ECU Tuning by VelocityAP delivers.
This isn’t just a standard remap, it’s a precision-developed, dyno-tested ECU calibration built by experts who understand how to extract power while maintaining the balance and composure your Jaguar or Land Rover was designed to have. Whether your engine came from the factory as a 340 hp, 380 hp, or 400 hp variant, this custom tune optimizes fueling, boost, timing, and throttle response so the power comes on precisely when you want it.
Visualize your next drive: the road opens ahead, the engine purrs at idle, and with a twist of the throttle you feel stronger pull in every gear. Mid-range torque arrives with authority, and acceleration feels far more alive than stock, not just on paper, but where you feel it the most, pushing you back in your seat as you confidently overtake or merge. This experience turns routine trips into dynamic drives, reminding you why performance matters.
VelocityAP’s tuning isn’t just about peak figures, it’s about drivability. Developed on real roads and validated on dynos using quality pump fuel, the calibration is engineered for safe tuning margins and seamless integration with factory systems. The result is stronger power delivery without sacrificing the refined character you expect from a luxury performance machine.
For owners looking to push even further, options like crank pulley and supercharger upper pulley upgrades can be selected alongside the ECU tune to tailor gains across the RPM band. With this tuning package installed, every twist of the throttle feels more responsive, every acceleration more thrilling, and every drive more connected.
Step in, engage the road, and experience your Jaguar or Land Rover the way it was meant to be driven.
All development is led by our in-house engineer, Chris Edgett, a factory-trained Jaguar/Land Rover Master Technician with over 15 years of hands-on experience. Chris knows these vehicles, how they respond, how they communicate with the driver, and where safe, repeatable performance can be unlocked without compromise.
Our software has now been deployed on thousands of vehicles worldwide, accumulating an estimated 10 million real-world miles. That experience translates directly into confidence behind the wheel, smooth cold starts, factory-like behavior in traffic, and explosive performance the moment you put your foot down.
JLR offers this engine in a number of factory calibrations – 340BHP, 380BHP & 400BHP. All 3 versions are fundamentally the same engine with different states of tune so the final numbers for tuning combinations are the same across all versions. Our tuning safely builds upon the factory foundation to deliver meaningful, tested gains.
For those seeking even more, our crank pulley and upper supercharger pulley options further increase boost and output, available individually or combined for maximum impact.
Every setup is dyno proven on 93-octane pump fuel and calibrated within a conservative, safe AFR range. The result is power you can feel, performance you can trust, and a driving experience that reignites the excitement every time you start the engine.
| Weight | 5 lbs |
|---|---|
| Dimensions | 8 × 8 × 8 in |
| Select your Vehicle Model | Jaguar F-Type, FPace, XE, XF, XFR, XFR-S, XJ, XK, XKR, XKR-S, Range Rover, Range Rover Sport, Land Rover Velar, Discovery, LR4, LR5 |
| Select Original Equipment Supercharger Crank Pulley ****Incorrect Selection will Result in Damage to the Drive Belt**** | Add Crank Pulley – my OEM Crank Pulley is Black, or Black Outer Ring, Add Crank Pulley – my OEM Crank Pulley is Silver, None |
| Select Supercharger Pulley | Add Supercharger Upper Pulley, None |
| Choose your Flashing Method | Use My Dealer Tools, VFlash Personal Flashing Tool |
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Aaron Posey –
Had an excellent experience with VelocityAP! My order was processed promptly, and the team was very responsive to any questions I had. Will highly recommend VelocityAP in the future!
Alan Lemen –
Pulls great now low down. Car has might better response at all times in all gears. Makes a good car great.
Extremely simple to do the upgrade.
Great company to deal with very responsive to questions even at weekends.
Would highly recommend company and product.
C. Rodgers –
VelocityAP did an amazing job on my 2017 Jaguar XF’s performance with this ECM tune. It’s a night and day difference and worth EVERY penny!
ricf13 –
VERY easy process from beginning to end! the crank pulley may not have been the easiest to install but it was ultimately necessary. loving the tune and what it did to the car!!
Michael Booher (verified owner) –
I got the Stage I ECU tune for my 2013 XF 3.0 AWD. I’m not convinced that it adds 75 hp, but the car definately runs better, especially above 4500 rpm. Using a handheld stopwatch, I measured 6.0 sec 0-60 before the tune, 5.5 sec after. Since that’s just 1st gear and part of 2nd, at higher speeds the performance increase is likely greater. Additionally, the MPG seems to have gone up about 2 MPG as well, with highway mileage above 30 MPG! We’ll take it on some long trips this month and get a better feel for it, but so far, so good.
Rogelio Saenz (verified owner) –
It makes your car run like it really should for a sports car. In love with the results and worth the money.
Also great cutomer service. I will continue buying their products.
Just be careful with pops and bangs… they are HARD.
Mac (verified owner) –
Going to Stage 3 with the tune and double pully has transformed my 2017 XE AWD into a sleeper that’s able to surprise anyone who wants to flex 🙂 Stage 2 provided a peak over 4K RPM that was fun but Stage 3 gives it a wide powerband and even the sound is completely different from Stage 1 or 2. The freeway power and top speed are simply unreal vs. stock. Getting the supercharger pully off required a hydraulic puller but other than that the upgrades have worked great and I have had no reliability issues with the increased power. Stage 3 will kill your mileage so if that’s important stick to Stage 1 or 2 (23 MPG now). I’m waiting on my Transmission tune to come in the mail and expect even more from the car once completed. Just do the upgrades so you don’t miss a day of fun in your Jag.
Cyrus Chinoy (verified owner) –
Was going to wait for any sale but decided to pull the trigger and was the best decision ive made yet. The ecu tune i received back was done within 1 day! Outstanding time. Upon uploading the tune and driving, it was almost a completely different car. Definitely recommend
Mark Precious (verified owner) –
2017 Jaguar F-Pace R-Sport with the V6S came with 340HP instead of the factory tuned 380HP in the S model. I ordered this tune was asked if I needed anything custom (just asked for auto start/stop to be disabled permanently). The installation with the handheld tuner was easy enough and it felt much snappier and smoother accelerating from stop or midrange. I put 30K additional miles on after the tune and no negatives (MPG was the same, no engine codes etc). With or without the lower pulley option this is a great upgrade, and was looking forward to the lower pulley install and an updated tune for more smiles.
D (verified owner) –
Stage 1 tune for my base 340 hp F-Type really un-nerfed this car. My butt dyno experience matches the dyno chart – no significant difference under 4k RPM (so no real change in day-to-day driving – which is good) but huge difference afterwards. Previously, the car ran out of gas in the higher RPMs but it now continues pulling all the way to redline. Can imagine how broad and significant the stage 2 and 3 tunes would be
J.B. (verified owner) –
20k miles now on stage III (1500 of those were stage IV, so e85, but lack of enough stations made me go back to stage III – same rating applies to stage IV as this). No issues. Just smooth power. No problems or issues to date at all. I had them tone down the pops as much as possible (to save the cats too). Just love this and given the v6 is shorter geared, on e85 it may be faster than a stock 575 v8. I use mechanical sympathy, so I don’t launch it with this much power, but boy can it go.