Well, the 1LE is a "track capable" car and it comes with 3.91's. So, I'd say 3.91 (which is exactly what I have).
C.A.I., ARH LT, Pypes Cat Back, ZL1 Shifter, Quantum Brake Ducts, JDP Tow Hook
Scorch Yellow Trim Kit, Shark Fin, AAC DRLs+ABLs+SMDs, ZTA Rear Spoiler, R.Y. 1LE Splitter
Pfadt coilovers, camber plates, trailing arms & differential bushings.
BMR adjustable toe-rods. Pedders ZL1 barz, rear cradle inserts, radius arm & steering rack bushings.
Hotchkis Max Chassis Brace (minus tunnel cross-over piece for SCCA rules)
1LE 3.91 gearzzz. Drive Shaft Shop Road Race Axle Upgrade. TurnOne power steering pump.
Forgeline GA3-R 19x11 + Hoosier R6 315/30R19
426 HP @ 5550 RPM / 427 TQ @ 4700 RPM