for the GT, use Iridium or Platinum plugs. The copper is for use in boosted or blown applications. We notice better overall performance using the precious metal plugs and OE wires.

its a 98

pic 1 from left to right is: Cat - U bend

Pic 2 from left to right is: Cat - u bend - resonator

ahhhh ok !

ok. From driver's side, cat to the left, then u-bend, then res, then aft y-pipe, then muffs, then tips.

You have 2 O2 sensors: one on the down-pipe after the forward y-pipe, and the other in the middle of the u-bend.

Once you replace the cat with a high-flow magnaflow/3" d/p, replace the O2 sensors as well. Expensive, but worth it.

cool!

Darn you, Randall! This was MY baby! You go and take your bolt-ons and play somewhere else! Let those who are man enough to get things done on engine alone talk like adults. Take your riff-raff elsewhere! LOL

j/k, Randall. Thanks for pitching in.

haha, sorry but I always thought my elders were wiser, you really dropped the ball on this one, Rick. tsk tsk. How can you live with yourself? :p

It took me a second to figure it out as well hah, I forgot the stock cat was so long and triangular shaped so I had immediately assumed it was the resonator.

I wouldn't replace the rear o2 though, it's really not needed.

thanks guys deffinetly appreciate the help!

Oh and Rick, if you pay for shipping I will give you my blower but you gotta promise to put it through it's paces! Then we can both talk riff-raff.

And no problem Jeff, hope you get it all straightened out, let us know how it goes.

ya well my buddy had to get all 3 o2 sencors changed on his tahoe they seem to all go at once or it started with one then the other i dont know but the mechanic said hes never seen 3 go out at the same time !

i will for sure !, thanks again, i guess ill go from there well see what happens

That would kinda bite.

what would the shipping be for a blower and intake mani from the frozen wastes down to the Deliverance location?

WAIT! WHAT AM I SAYING!!!

Shipping only for a blower and the manifold, huh? we just might be starting to talk here...

Well, actually it is just the blower, I still need my LIM. The blower is just one of a few parts you'd need. Either l67 heads or a machined LIM with injector bosses, fuel rails, pulley/s and possibly belts depending on how you went. Oh, and a tune.

BTW, it's no longer frozen where I am lol, it's getting nicer.

I do believe shipping is a little pricey because of the weight. Andrew (4drgt) shipped a blower to my area and it cost him quite a bit I remember, you may want to PM him and ask if he remembers.

It's only fair that a nice GP like yours has something that whines in the engine and not just in the passenger seat! (tell your wife I'm sorry lol, I'm sure she is a lovely woman)

Lol. Rick's wife is the brunt of every joke today!