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Has held up perfect since I got it a few months ago with the new oem thermostat too. ...

Perfect product, gets rid of that junk plastic bs that was in there before. Also makes bleeding the air out ...

Best purchase I’ve made on Z1 so far! I got all black hoses and tubes and it looks really clean! ...

Working just fine since I’ve put it in last July ...

Should have came with this from the factory. Used rubber bands for the longest time before getting this ...

Haven’t put them in yet but the came in pretty quick with everything else. Gonna be doing both pcv valves ...