Yes I know another sparkplug thread
Ok so I have searched and searched and now give up. I know al605 is favored for stock applications. now I dont want to run coppers I'm to lazy to change plugs every 10k mile I mean seriously i drive 16k a year. I know plats don't like superchargers. So that leaves me with iridium. What are my choices it looks like ngk tr55ix are equivalent to stock and ngk tr6ix are 2 ranges colder. Any reviews on the al605 iridium.
I'm mainly wanting cooler because I'm planning on dropping a pully later, and with the 100+ temps in the summer, and only having 91 octane the car really bogs down.
What do you suggest?I want to do this right the first time.
2003 Pontiac Grand Prix Gtp - 3.8 Supercharged V6, 53,000 miles, 98% stock for now
1999 Pontiac Grand Am GT - 3.4L V6, 134,000 mile, SOLD
1994 Oldsmobile Cutlass Supreme Convertible - 3.4L DOHC V6, 87,000 miles, SOLD