ECP 1997 - 2004 Corvette C5 Aluminum Radiator - 6 Speed Manual - Engineered Cooling Products

Good fitment and performance, very poor quality.

Bought and installed this radiator in my car, install was easy, fitment was good and it dropped coolant temps noticeably. However after a year and about 10,000 miles of driving it sprung a leak from the joint between the fins and the driver's side end tank. I went through the warranty process with ECP (ECP's customer service was very good), and they sent me a second radiator after I paid for shipping. I installed it with the radiator saver anode, verified the coolant was grounded properly to avoid corrosion, and after two weeks the second one sprung a leak in the same spot. I bought an oem style radiator after electing to not go through the warranty process a second time, and have been much more satisfied.

Looks and fit great, minutes the electrode kit.

Radiator fits and looks great. Welds look tight and everything was packaged with care. My ONLY issue with this (and I’m happy to update if rectified) is that the electrode is too large to fit where it’s meant to go. The only way to make it fit is to cut it in half so that it doesn’t hit the inside of the radiator. As shown below this is how much I cut to get it to fit. I think simply a shorter electrode or some other shape to get this to work from factory would be great.

Perfect fitment and even better cooling

Picked this up because my stock radiator had a hairline crack on the end tank. A lot of the older posts on Facebook said fitment wasnt great but I figure at less than half the price of the D brand I'd risk it. Fitment was absolutely perfect. The condenser and fans slid right into place better than OEM. Quality and welds are on par with the Koyo Radiators I have in other cars that cost significantly more. Radiator keeps the car much much cooler than the stock unit. Hardly ever seeing higher than 210F unless Im in heavy traffic and higher ambient temps. 10/10 would absolutely recommend this to anyone needing a new radiator or looking for an upgrade.