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£1,184.37
RENNtech HHT (hand held tuner) allows you the unlimited ability to switch between tuned and stock ECU programming and requires no ECU removal!
Their proprietary tuning module stores both the RENNtech tuned file and your vehicles stock file. The module plugs directly into the OBD2 port and delivers the file you choose directly to the ECU. Programming takes only a few minutes and the vehicle can be reflashed at any time as many times as you wish.
The RENNtech tuning software for Mercedes offers significant gains in horsepower and torque across the vehicles entire power band. By modifying ignition timing and throttle mapping, optimizing air/ fuel ratios, increasing the engines rev limiter and modifying boost mapping for turbo charged vehicles, RENNtech performance software unleashes your Mercedes true potential.
RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980’s! Their experience, countless hours of in house research, development and exhaustive testing ensure that our proprietary ECU upgrade offers incredible performance gains and rock solid daily driver reliability.
SLK 55 (R171) Stock Performance:
Modified PErformance:
Due to some of the products coming direct from RENNtech USA please allow 7-10 days for delivery
Prices may vary in accordance to the current exchange rate, please contact us for the current confirmed price
Our refunds policy can be found here
Minimum purchase £250.
Representative Example: Cost of Goods £1200, Deposit £50, Amount of Credit £1,150, Annual Fixed Interest Rate 26.47%, Monthly Payment £46.85, Term 36 months, Total Payable £1736.60, Representative 29.9% APR
Subject to status. T&Cs apply.
Registered office address
C/O Dpc, Stone House, 55 Stone Road Business Park, Stone Road, Stoke-on-Trent ST4 6SR
Registered in England and Wales No 04058771
Trading address
Unit 6, Newman Close, Greenfield Industrial Estate, Congleton, Cheshire, CW12 4TR
Collins Performance Engineering LTD is authorised and regulated by
the Financial Conduct Authority (Firm reference number 795757). We are a
credit broker, not a lender, and offer credit facilities from Snap Finance Ltd. Snap Finance Ltd act as
the lender. Credit Subject to status. Terms and Conditions apply.
Snap Finance Ltd is a company registered in England and Wales. Company Number 08080202
Registered address: Snap Finance Ltd, 1 Vincent Avenue, Crownhill, Milton Keynes, MK8 0AB
