I know I'm probably looking at a cooling overhaul. I already did the thermostat,water pump, hoses, and expansion tank maybe 30k miles ago. So probably will do the other parts now. I'm just curious if this mounting plate can leak or if it seals to the radiator somehow? I guess it must I just don't see how without taking it apart.

Are there any drop in radiator upgrades? As example the Z3 S54 radiator was a bigger direct fit for the e36 M3.

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2000 e39 M5 Titanium on Black
2006 e53 M54 Titanium on Black
2007 e83 Black on Black Sport pkg
2004 Avalanche 2500 lifted 4.88 gears
1994 jacked up Jeep
1987 GMC lifted short bed on tons