Thread: what spark plug should i get.

Oops yeah 606 or 605, long week. Personally I got the AL606's just because I couldn't find a lower heat range plug where I live. If you do go copper replace them every 15k these cars use waste spark system, eats these plugs up.

Originally Posted by Z34Phoenix

with boost it is said they do not like the platinum plugs. and i know that even NA they don't like double platinum.

Like 94GrandPrixSE said, it's about the waste-spark engine, not whether or not there's boost. Platinum gets brittle and breaks because it can't handle the abuse. Copper's soft enough not to break off in the engine, but doesn't last very long. Iridium does a great job.