Originally Posted by
bluegtp91
ZZP has been proven time and time again to be wrong with many things. They are not a good plug for that application. And no, not lasting as long isn't the only thing...you'll get worse performance (probably not noticeable but it will be there), worse MPG's, and the plugs will not last as long as they said on your setup. Autolite 103's are for setup's sitting in the sub 3.0" pulley range...big cam/heads cars or cars with big injectors/tiny pulleys and or a full size IC. To tell you how much ZZP knows...they didn't even know programming mode meant when they messed up my PCM 5 times. Not to mention the countless complaints on customer service lately along with getting LAUGHED off of CobaltSS.net for their lack of knowledge on the LSJ platform. Plus, since I know nothing...I shouldn't know that you also want the hottest spark as you can get away with...without knocking. AL104's would be ideal for your car...but I don't really care in the end...because it isn't my car. Will your car suffer, probably not. Could it run BETTER than it does now? Yes. But take ZZP's word for it since our's isn't up to your standards...and I was talking about the Bosch plugs being a "FAILPLUG", not the AL103's...I run 103's in my car...but it is a big cam/ported heads/injectors/LS1 TB/tiny pulley/meth injected setup