Thread: NEED SOME HELP ON MY 99 GSX

Whats up TU. What brand 3" did you get? I know on my Buchar, it actually starts at 2.5" at the neck-to-o2 so that most aftermarket o2 housings will work. Actually, most o2s are 2.5" tubular, the only time they go 3" is if its an external dump or if the o2 housing is an o2 eliminator. I wouldn't even worry about it since your 2g o2 is hefty and the outlet of turbos up to an 18G wont be bigger then your o2. Use the money on a nice SBR cast manifold!! :-D Otherwise, the best place to go for o2's are slowboyracing, 122performance (if your on a budget but want something super solid), and victoryperformance. I can't recommend punishment after I recieved mine and installed it. More on that later....

Manny