A good quality part and easy to get instant coolant temps at the track after popping the hood.

So far so good! I have had it installed on my '15 370z for 600 miles (roughly half street driving and half heavy track driving). Cap does not leak at all and shows the same temp as my in-cabin coolant temp gauge! It's a great little accessory for easily checking coolant temps. Highly recommend.

Really nice to be able to check the coolant temp with the hood popped. No leaks with the higher pressure in the short term. Works very well thusfar.

Does not work on the stock 300ZX radiator. Doesn’t properly seal and your coolant will start boiling