well u guys finally convinced me....when i was at checker today returning the CCS, i said to myself, why not get something....hmm...and so i bought 6 TR55s! Aren't you proud of me?!?!?! lol i am slowly anti Bosching...my o2 is still Bosch, but that is not due for like a year, so i will buy a delco in a year and do it up then...THEN, my car will be 100% Bosch free (unless GM has some other bosch stuff in there)

oh yeah, i will be installing them this saturday..PEACE!

As far as Bosch goes the worst thing would be a Bosch O2 from experiences of a lot of members. I don't think plugs are necessarily bad being Bosch as far as I know, but the TR55s are a good choice!

Bosch plugs are equally as bad as the O2.

I'd be surprised if your O2 lasts the year you want it to.
In fact, I'd bet it'* already costing you. And I'm one of the victims.

I remember using Bosch plugs before I switched to AC Delco Rapidfires. I don't think I had them in long enough to notice any ill effects.

My Bosch O2 went out in 2 weeks. I was pissed. Check engine light came on, and the same P1133 "O2 Slow Switching Rate" code came up again. WTF? Got a Delphi O2 in there, and everything has been fine.

I used to think Bosch made nice stuff, but never again.

Your FPR is bosch..should be..right?
I am a Bosch victim too, back yonder a few years ago, i tossed a plug set in my FIRST SSEi...yeah..3 months and they were toasted oats!

yeah i know about the bad o2, i put it in on August 16th of last year...and its still ok...so we will see....

i would replace it right now....but i dont have that kinda money floating around!!! i had enough to pay for the plugs, and as for the 80 from the CCS, i have to keep that available so that i can get more stuff for the CC to diagnose it!...

i will let yah guys know....

also, what is the recommended plug change interval?

oh and, i know my o2 is ok for now, my engine puts out a PERFECT air/fuel mix through all RPM ranges....

well if Pat (93SLE) is right its ever 13 years or so

but id figure a yearly thing, anybody say otherwise?