can i get a couple bolt ons for a 99 ls then later down the line slap on a v tec head and not have to take off my bolt ons

 

like a header, exhaust, and intake? those you should be able to do unless to use a gsr intake manifold, then the intake from the ls wont fit. as far as i know all the b-series headers will bolt up to the b-series heads and as long as you dont change the header/exhaust set-up, it will fit fine. i do know the stock gsr header is a little bit shorter and wouldnt fit with an ls exhaust without some modification. if you do the full exhaust, you wont have any trouble reaching .

 

yes an I/E/H will fit all b series