Granatelli LS 108mm throttle bodies are billet drive-by-wire throttle bodies for GM LS3, LSA and LSX engines. Once your LS has more cam, more displacement or boost, the throttle body can become a restriction, and a 108mm unit is a common upgrade.
This collection includes the GM LS3/LSA/LSX 108mm billet drive-by-wire throttle body (GMTBLS108) and a black billet version listed for the GM LS3 6.2L (GMTBLS108B).
Both are drive-by-wire designs, so they're intended for LS engines already set up for electronic throttle control.
How to choose: confirm your engine (LS3, LSA or LSX) and that it uses a drive-by-wire throttle body. Then pick your finish: natural billet (GMTBLS108) or black (GMTBLS108B). If you need more airflow, compare our LS 112mm throttle body. If you want the stock-size option, check our GM throttle bodies collection.
Shop Granatelli 108mm LS billet throttle bodies below.
