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Performance Upgrades

4MuddyFeet offer a full range of performance upgrades, from ECU power chips to complete packages with ECUs tuned to your requirements, upgraded intercoolers, suspension and brakes.

ECU Upgrades:

  • Shaper Throttle response improved mid range torque.
  • The engine management system is re-mapped
  • No add-in boxes and no cutting into the vehicle's wiring harness
  • In most cases, fuel consumption can be improved
  • Performance tuning may affect your insurance premium so please advise your insurers after fitment
  • Improvements up to about 30% more power and torque
  • The process is reversible back to a standard tune and no extra cost.

4MuddyFeet fit JE Diesel Performance

JE Diesel performance tunes deliver vastly improved power and acceleration with response and  flexibility. A spin-off benefit reported by many of our customers is enhanced fuel economy.  JE make no claims in this area since more power usually results in a more exuberant driving style!  However, like-for-like better fuel economy can be expected.

JE also pay particular attention to smoke and particulate emissions, unlike lesser tuners and, particularly, the add-on module brigade, who simply pump in extra fuel and trick the ECU. Such "modified" vehicles can usually be recognized by the vast clouds of noxious black smoke belching out of the exhaust. JE (and the few other top diesel tuners) re-write the entire map to give power with efficiency and no more smoke than any OE diesel, even under hard acceleration.

JE diesel tunes are as good as any, better than most, and usually cheaper than all! Needless to say, any JE fitted tunes that become wiped during routine servicing will be re-instated f.o.c.

Full details of JE Diesel Performance Tunes here