Review on BMW E36 E39 E46 E85 320i 323i 325i 328i 330i 525i 528i 530i Z3 Z4 A-Premium Engine Heater Inlet Water Coolant Pipe Replacement Set with O-Rings - 2 Pieces by Billy Gidney

According to my experience, this hose was the final missing puzzle piece for my engine. The inlet coolant allows the engine to run smoother, reducing wear and tear. It's also made with high-quality materials, so it's long-lasting. The only downside is that it's a bit pricier than the standard ones, but it's worth the investment for the benefits it brings to your engine.