Hey just wanted to give you a website of a guy that has made his '99 GV into a nasty beast and listed all the upgrades, so it's a bit easier to match it, ofcourse he actually also changed the engine to the XL-7 or 06-08 GV type. That is the 2.7L V6. But I am sure that it should give you at least an idea of what may fit. The site is
Punisher: 1999 SUZUKI GRAND VITARA TURBO 2.7 413HP - Sioux Falls, South Dakota The nickname for his GV is The Punisher, amazing that he managed to raise the HP from apx 190HP to 413HP with a 1/4 mile at 11.7sec @ 118mph. Well it may help you decide what direction to go in. Good Luck
