Question why does my Ls1edit show a l7 instead of a 4 when I own a 99 5.3L. ?
Question why does my Ls1edit show a l7 instead of a 4 when I own a 99 5.3L. ?
1999 Silverado 1500 Ext. cab Red 2/4 hotchkis drop & swaybars, bilstein stocks, AR626 & 404 Nitto's, Yank converter, ASM headers, ASP underdrive pulley, Taylor wires , free mods VCN 2000, Nelson Performance tuning
2002 Red WS6 M6; Flow master K&N