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  • 93AKI, ESS S2 S55. Stock downpipes/intakes/exhaust.
  • Stage 2 linear S55, 91AKI, stock cats.
  • Stage 2 torque S55, 91AKI, stock cats.
  • Image 4

S55 Stage 2 Performance Package

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Product Description

ESS S55 Stage 2 Performance Package 650+ HP / 600 lb-ft tq

Take your already high performance M3 / M4 to the next level with the expert calibrated S55 Stage 2 ESS Performance Package

Power increase of ~200hp and 100+ ft/lbs of torque over otherwise stock M3/4. Massive power gains are achieved from a combination of vastly improved turbocharger internals and a 3.5bar MAP sensor conversion giving the ECU the ability to fully control the extra boost delivered to the engine from the new turbochargers. This package allows for reliable, consistent perfomance and a very responsive and OEM like driving experience on pump fuel (91-93AKI/95-98RON).

Turbo lag is minimized through advanced vanos and AFR control. 


Includes :

-ESS Stage 2 MEVD17 ECU software designed for 3.5bar MAP sensor
-3.5 bar OEM BMW intake manifold MAP sensor.
-ESS spec upgraded S55 turbochargers (core return applies)

Requires :

-HFC or catless downpipes
-Free flow exhaust system
-Water/methanol injection system
-Upgraded charge pipes

Call for more information.

Note: Prior to sending ECU in for configuration, you must note your name and order # on the ECU.

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