yes and npo
yes and no guy to be honest i think its stupid for you to.
with just a good tune and some parts like intake exhaust and downpipe (catless) Great tune you can be at 320ish and 330ish tq which is plenty fast
for running even pure meth your only looking at maybe 25-30hp yes it will be fast but if the pump goes out which there is nothing in most kits to let you know you run outta meth, the hose gets clogged. and your car goes BOOOOM
meth is for us lsj guys who want to keep up with you guys once tuned