Dinan Strokes BMW M3's V8 to 4.6-liters and 527HPCalifornia-based Dinan has put out their biggest-ever take on the BMW M3. The Dinanized bimmer is called the S3-R, and in place of the original 4.0 liter V8 is an engine that's been bored and stroked to 4.6 liters.
Up top, breathing is heavier thanks to a "Carbon Fiber High Flow Intake and bored out High Flow Throttle Bodies"; down low Dinan fits a free-flowing exhaust system that also makes use of pieces labeled "HIGH FLOW".
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