Apologies on my earlier posting as I didn't specify you should always attempt to draw in cool charge-air whenever you can. As for the ceramic coating on intakes, it's just a bunch of marketing hype. Yes, you could probably discerne a measurable difference in the intake air, but only a few degrees at best. Now if the ceramic coating were several millimeters thick with an air gap, that's another story entirely. In any case, take a look at professional race cars that are turbo-charged to see how they handle their intake cooling. You'll notice there's not much there other than high-quality fittings except for heat shields around the turbo area. Why? Ambient temperature again. Whatever coating or insulation you put on there is going to stabilize at whatever the consistent underhood temperature is. That's just plain physics. Heat shields and such are used with great effectiveness to protect from radiant heat sources, like exhaust manifolds and turbos that get really hot. We don't have these things under the VX hood. Find a good source of cool air (fender, snorkel etc.) and get it to the engine. Don't waste your $$$ on coating the intake.

If you're really serious about getting a denser air charge to the engine, which is why you want it cool, then invest in the supercharger or look into water injection. Water injection would be the most economical and offers a great deal of adjustment and flexibility. Otherwise you may want to look at that JDM ground-strap on eBay. I hear it comes with a bridge now... ;pg;