Mr1der wrote:don't think I'd call the plastic cheap personally, if you think about it, the plastic isn't gonna transfer heat anywhere near as bad and lead to a cooler charge, it might not as last as long or be as pretty, but hey, so long as nothing gets hot enough to melt it:D
did you know the Focus SVT uses a high heat plastic intake manifold?
Mazda apparently did a lot of R and D on the chasis of the protege when they built them, it's supposed to be very rigid and provide great handling. They tend to be quite a threat in SCCA racing...
Have you seen the piping on a Mazda Speed Protege?? Thin, very thin and the clamps CANNOT be removed or it voids the warranty b/c once they are removed they will no longer tighten up. Did you read the articles about that car?? How the piping blew off several times?? That is just cheap. Ummm, you think I didn't know about plastic intake manifolds??? Here's a small list of engines that use that as I can recall right now.......
GM 3800 V6-3100 V6-LS1, Chrystler V6s, Ford 4.6 V8-5.4 V8-3.8 V6 etc.
Most new engines have composite intakes b/c they are cheaper to make, lighter, and transfer less heat. A composite intake is thick and cannot be compared to the cheap piping on the Protege.