The M6 1LE with NPP exhaust is definitely a bad ass car.
The exhaust has a mean rumble and the 3.91 rear end pulls noticeably harder than a standard SS.
And, the handling, shifting, steering feel, balance, and looks of the car are stout and unique.
GM should have produced every SS with 1LE specs from the start IMHO.
For me, my 1LE is a "poor man's" ZL1. Let the mods begin
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If you pull the trigger on the 1LE, you will definitely be joining the Permagrin club!