Hi everyone, Ive seen this mentioned a few times in the forums, and my searching on the web has turned up mixed opinions. How does everyone feel about engine coatings are they 'worth the money' (for a killer street engine). What parts do you recommend being coated? Do they really extend part life 2-10 times like some sites state?!?! What are the best companies to order from, techlinecoatings and swain tech ive seen mentioned.