[JohnC1966]

I am looking to upgrade my heat exchanger and pump- later a pulley and tune. There are many choices out there. Can anyone give me guidance on the different manufacturers pros and cons? I called Renn Tech 2 times but their sales people are not very informative or helpful and their prices seem much higher than other companies. . I am also looking at PLM, VRP products. Thanks so much.

 

[andrewkloppel]

I am looking to upgrade my heat exchanger and pump- later a pulley and tune. There are many choices out there. Can anyone give me guidance on the different manufacturers pros and cons? I called Renn Tech 2 times but their sales people are not very informative or helpful and their prices seem much higher than other companies. . I am also looking at PLM, VRP products. Thanks so much.

The PO of my S211 installed an upgraded PLM XL heat exchanger as well as the updated Bosch electric pump, and can say that the car runs very stable and cool even at continuous higher RPMs on long pulls. I can’t comment on price or whether it’s a “good” brand, but just sharing the outcome and results I’m getting.

For additional context it’s also got a 77mm UPD pulley, Maximizer (Chinese/ebay quality) long tube headers and a stage 2 ECU tune from Eurocharge. I corresponded with Eurocharge since my ownership and found them responsive and helpful. With these mods the car made 435whp and 485tq around April of ‘21.