Engine Modifications?

[floridahummer]

<BLOCKQUOTE class="ip-ubbcode-quote"><div class="ip-ubbcode-quote-title">quote:</div><div class="ip-ubbcode-quote-content">Originally posted by WPBGUY67:
I have been reading alot about "Throttle body spacers", "Air intake kits" and other things.

#1) Do they really work?

#2) If so, Why don't GM make them like that, since it increqases HP and Milage?

#3) Do these modifications affect the warranty? </div></BLOCKQUOTE>


I AM HERE TO TELL YOU THE ANSWER IS YES YES YES. I LOST ALL LOW END AFTER PUTTING 37S AFTER INSTALLING THE SPACER IT GAVE IT ALL BACK. I CAN NOT SPEAK FOR STOCK TIRE APLICATION BUT SEEMS TO ME IT COULD ONLY HELP