BMW 650i | 2011-2018 | Stage 1The BMW 650i blends grand touring luxury with twin turbo V8 musclebut WestTuneds Stage 1 ECU calibration brings the aggression to match its presence. With our tune, the N63 engine delivers harder hitting torque, crisper throttle response, and smooth, uninterrupted accelerationwhether youre cruising or gapping AMGs on the autobahn. What Youll Feel: Instant low end surge and boosted midrange torque Faster turbo response and smoother throttle control

(Optional) Off the shelf (OTS) tunes for 91/93/Race gas/E85 octane (SEE HERE)

and finished with a UV-resistant gloss for enduring beauty

Crafted from high-quality carbon fiber

Adds 50-55 HP to the wheels & 60-65 TQ to the wheels

Stage 1 gives the 4S the urgency and power it was built for

and AWD system

this tune sharpens throttle response

linear boost delivery all the way to redline

Crafted from the finest carbon fiber materials available

Enhanced Performance:

an essential upgrade for those who seek to enhance the dynamic presence and performance of their luxury SUV

and brutally fast—but with WestTuned’s Stage 1 ECU calibration