exhaust

i am tring to do some mods to my 04 G35 and my 08 350z . im looking to get some good hp & sound out of both,but my $$ for each car is $1000-1500. does anyone recommend a good CAI,exhaust,and chip that i can get for this amont of $$.I'v been looking on ebay, but wanted a couple of opinions before I bought. I'v found exhaust for about $400 called cxlighting,and a SLR chip for $70.are these junk or worth it.

Go with the AEM CAI, I recently put one on my mothers car, and I have one in my truck as well. Horsepower gain was probably around 10, and it has a wicked intake sound now once you get above 5k rpm. I also like AEM because they are a dry flow filter which means no oiling the damn filter, and no worries either about messing up your MAF sensor if you apply to much oil.