Quote:
Originally Posted by BigAls87Z28
D3 performance makes a kit to boost the power of the 3.6 SIDI engine from 304 to 340hp.
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D3 specializes in rimz and b0dykitz

They've promised a supercharger to the gen2 CTS guys for close to 2 years. Their "Cold Air Intake Kit" that they were charging $400+ for was a K&N filter and a piece of HomeDepot tubing with a "D3" sticker.
Then there was the spark plug debacle...

They are a big joke over on the cadillac forums (even though Mark @ D3 is a good guy).
*edit*
their site hasn't changed in a long time:
http://www.d3cadillac.com/