2017 Camaro ZL1s are starting to slowly reach customer hands...

After taking delivery of his Black ZL1, Tommy down in Texas headed straight to Houston House of Power for some preliminary work.

First was a baseline dyno run, in which the supercharged 6.2-liter V8 laid down 554 rear-wheel hp, while sending 532 lb-ft of twist to the tires.

Then Tommy did the magnificent, giving his ZL1 a new cams, a set of Kooks headers, a Magnaflow exhaust missing the cats, and had it the House of Power tune the package. Just listen: