BMW M4 RSS

YPG Motorsport is expanding beyond ECU calibration and into purpose-built suspension components — starting with our own line of performance lowering springs and height-adjustable springs for the BMW G8x platform. Why We Built Our Own Springs Every M2, M3, and M4 that comes through our shop for tuning leaves with the same complaint: the factory ride height. The G8x platform sits too high from the factory, and the aftermarket options are either backordered for months, limited to a single fixed drop, or priced well above what the product justifies. We wanted to offer our customers something better — springs that...

The BMW G80 M3 and G82 M4 are powered by the S58 3.0-litre twin-turbo inline-six — BMW M Division’s most potent six-cylinder production engine. With two mono-scroll turbochargers, a closed-deck block, and forged internals from the factory, the S58 is engineered to handle serious power. But the stock exhaust system, specifically the catalytic converter section immediately downstream of the turbos, is the single biggest restriction holding it back. This guide covers everything about upgrading the downpipe on the G80/G82 platform. The S58 Exhaust Layout Unlike V8 twin-turbo engines with individual downpipes per bank, the S58 inline-six uses two turbochargers feeding...