Southways: 108mm Throttle Body [LS2 LS3 LS6 LS7 LS9 LSA LSX]
Southways has built the first functioning LS3 style 108mm throttle body. It uses all the factory LS3 electronics and motor and the blade rotates the correct way. The 108mm bore allows for an incredible cfm of air flow. Great for big N/A engines as well as supercharged engines. These throttle bodies use the factory motor, electronics and mechanical hardware and therefore requires a stock LS3 core for motor stepper parts.
Options include just the TB as well as optional 4 bolt flange to mate to the GM manifolds and the necessary GM LS3 throttle body!