You do not have to upgrade the throttle body. It is just bored out to 75mm so you dont have to enlarge it later on.
You just bolt the intake on and go. I'd go with a trickflow intake in my opinion. The only cool thing I like about the SSI is the fact that it comes with better fuel rails but that's not an issue until you start punching out major horsepower.
__________________ 89 GT Hatch: Custom M90 Supercharged w/ Ported Trickflow Trackheat Heads, Stage 1 cam, Streetheat lower / Sheet metal upper, Tweecer RT & PLX Wideband, 75mm TB, 1.6 Roller rockers, 3.73s, MSD 6a, Canton 7qt Pan+ Windage tray, 36LB Injectors, 200 amp Alternator, 75mm Pro-Mas MAF, 190lph fuel pump,Spec Stage 1 Clutch,SouthSide LCA's, Pro 5.0 Shifter, Steeda CC Plates / Springs, FMS Aluminum Driveshaft, New T5 w/ 2.95 first gear, Underdrive pullies, Zirgo 3300Cfm Elec. Fan, AFCO alum. radiator | 
Do I Have to buy any supporting parts to install a BBK SSI intake manifold? 
