RiAiCiING Cold Air Intake Kit with Heat Shield for BMW X3 X4 M40i B58 3.0T

The performance difference is tangible. Expect gains of 8–12% horsepower and 6–10% torque, along with a noticeably sharper throttle response that makes power feel more immediate with every input. The multi-layer cotton air filter reinforces those gains by flowing significantly more air than the OEM paper element while maintaining over 99% filtration efficiency. It is fully washable and reusable — a quick clean every 20,000 miles is all it takes to keep it performing like new and protecting your engine from contaminants over the long haul.

Installation is a genuine bolt-on affair. No cutting, no drilling, and no professional shop required. The kit arrives with every bracket, clamp, and fastener needed, along with a detailed step-by-step instruction guide that walks you through the process from start to finish. Most owners complete the swap in under 60 minutes using basic hand tools. If you are looking for a straightforward, high-impact upgrade that improves power, throttle feel, and induction sound in a single afternoon, this intake kit is a logical first modification for any X3 or X4 M40i.