Great but probably better for warm weather, I installed the metal flap kit and it ran fine for a few months but now it has a whining noise at idle and I can hear the disa flaping around on cold starts, shop said it was the disa and quoted me 1050$ to fix it Thank you FPC euro for helping my wallet ❤️

I purchases part eight months ago, it worked fine, still does, but the solenoid that pushes the valve started leaking somehow and he produced this horrible screeching noise at idle. When on the throttle it would go away but it’s obnoxious having a car sound like that at every stoplight. Thank you FCP for your warranty as it makes it a lot easier on broke car guys like me :)

After only a few months the diaphragm inside tore and it began to make a whistling noise.

Great fit, gasket seals so much better than original. works perfectly.

Good fitment, and a great cheaper alternative to the genuine BMW part

Great quality, improved low & mid range torque and responsiveness. Also noticed a slight bump in MPG surprisingly. My old one was on it's way out and once removed the pin actually popped out of it! It was definitely due for replacement. Got 500 miles on the new Rein unit w/ no issues so far.

The Order was received when promised. I own a 2004 BMW 330Ci. There was some improvement in the mid-range torque of the engine however a rough idle and decline in city driving mpg is evident. I will exchange this part. The part that I received was packaged well but appeared to have been used.

Just like OEM. My lean code was resolved.

My 145k mile DISA Valve starting making noises intermittently, so I installed this one to be safe. Made surprisingly well, fits great- just don't expect that flawless OEM BMW parts finish.

Seems to work fine. Whistles a little more than the original.