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A stage 1 tune using a reputable tuning solution/company will typically increase the power output to 420bhp without any additional modifications and this is typically achieved by an increase in boost pressure
the wastegate duty cycles are reduced resulting in peak boost at lower RPM and therefore performance is increased
2009 saw further development and something completely new for the S54 engine to allow real power gains
when the radiator fan is operating
Dorch Engineering DS15 High Pressure Fuel Pump HPFP - BMW F20 M135i | F22 M235i | F30 335i | F32 435i | F87 M2 (N55) S-Class (W140) A stage 1 tune usingDS15 250 HPFP Specs DS15 250 DS15 250 + 38% N55LK DS15 250 + 49% N55LK Flow Capacity Gasoline 550whp 700whp 750whp Flow Capacity E85 400whp 560whp 610whp Operating Pressure 250 Bar 250 Bar 250 Bar Were proud to introduce our latest generation of pumps! Our widely successful Dorch Stage 1 (DS1) has been replaced with our latest and greatest creation; the DS15. This new pump is our Stage 1. 5 which has been completely redesigned and optimized from the
US$ 247.50
US$ 100.00