The oil cooler was the first, but I love my AP brakes the most. Just not the cost of replacement parts but they are worth it. I have a feeling this diff will be tied for 2nd. Even in 60* weather! I managed to get my friends oil temps to 250* after 2 laps on a short course so the cooler is #1
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'09 370 base - RIP
'09 370 Nismo - New track car
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