[Joshinator99]

Originally Posted by SOCAL.M6.ZLE

No worries. this replaces the OEM plastic unit. Purely cosmetic upgrade. Here are a few photos from my buddy Alex's car. We just installed his this weekend, along with a matching SC coolant reservoir.

Originally Posted by Patriot Motorsports USA

YES... it would superheat the coolant inside that its supposed to be holding in and prematurely push it into the recovery side of the reservoir. This is a car-show boomer part and in extreme track use would probably create more issues than it solves.

Using a sealed aluminum cap without a pressure relief valve would also cause issues due to thermal expansion, with the weakest link being coolant inside the heater core probably failing first.

Judging from the installed pics posted further up the thread, it looks like it’s using the OEM pressure relief cap, so there’s no worries there. It’ll operate the same as the OEM tank except it can’t melt or deform under high engine bay temps.

Also, given the mounting location and configuration, there is no way that reservoir is going to “superheat” the coolant. Perhaps if you welded fins onto it and mounted it in contact with the headers lol… but installed like the OEM one, I’ll respectfully disagree. That reservoir is not going to have any impact on coolant temps at all.