|
OP, I have had my catless Rev Works header on for about 8 months now and haven't noticed really any change as far as additional heat. I daily drive my car, with some spirited driving here and there, so I didn't think wrapping/coating was needed. I think a lot of the decision has to do with how you drive the car. If you track or autocross, it may be worth it because you'd be running the car harder for longer, and seeing much higher temps than you would get from daily driving, or even from spirited driving. I remember seeing a thread on here somewhere when I was researching this topic, and I'm sure there a multiple comparisons elsewhere, but someone did a comparison of a trackday/autocross session of various temps with a coated header vs. an un-coated one, and the coated header temps were significantly lower.
I'm not really sure if forced induction makes a big difference in heat in the engine bay, as I have never owned a FI car before, but I'm sure someone else can chime in on that.
-J.B.
|