RENNtech ECU Upgrade for S 65 (W221- 670 HP / 840 LB-FT)

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Description

RENNtech ECU Upgrade for S 65 (W221- 670 HP / 840 LB-FT)RENNtech ECU Upgrade for 221 S 65 AMG. Up to 670HP and 840TQ. Gains: +49HP & +102LB FT RENNtech has been at the forefront of ECU tuning since electronic engine management started to show up in vehicles during the mid 1980's! Our 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. RENNtech tuning software

Our complete lowering kit allows full adjustment without the need to purchase an entire coilover conversion kit and comes with an adjustment tool to make on-the-fly suspension adjustments

The result is nothing short of spectacular with gains up to 104 HP and 105 lb-ft

5 Series (E39) 525 d (HP: 163 | Year: 00 > 03)

the Slip-On is designed to fit perfectly with the optional Inconel Akrapovič link pipes or the stock system

BMC Air Filters

Kit Specifications:

The maximum power number reached with the RENNtech ECU Upgrade for the E450 is 392 HP and 463 LB-FT

The R3+ Performance Package was developed and tested running on standard 93 octane gas and 100 octane race fuel

450 HP / 332 LB/FT

32 sec 106

the new setting is uploaded and the car will adjust to the new height

6 Turbo 4 / 4S (HP: 420/450 | Year: 00 > 05)

Exchange/Return Notes