if you want a cheapy set that is actually built alright i would look into pacesetters or SSAC.
cheapy as in junk, or are they still good. And best place to purchase them
2007 Pontiac Grand Prix GT Series III 3.8 Super Charged AL 104's Plugs, 180* T-Stat, Tuned PCM , Custom CAI is complete and installed, AeroForce Interceptor gauge, Smoothflow 3.5 pulley with 0* KR, SSAC SS Headers. 6000K HID