I plan on gettin some lts and from what I've read they destroy your o2s when you first put them on because the crap burning off the inside of the pipes, how long does this take? Because I'd like to just remove the o2s and let it run if it will only take like 10 minutes or so

 

Never heard of this, but I used o2 sims in the back 2 and the factory ones on the front. I guess I should ask what year your car is. Then I had a program written to delete them altogether. Either way I've never had a problem.

 

You could just use an off-road Y-pipe and get those O2 sensors tuned out.

 

I only have front o2s no back and I read it in the installation guide in lt1/lt4 tech

 

yeah the car will run open loop without the o2 on start up of if O2 fail (you might get a code you my need to reset) but I left mine running 5-10 mins with only headers on and NO O2 in. Saying that, mine are Stainless steel so no 'coating' as such, just grease and crap (if thats what everyone means by coating) that I let smoke out before putting sensors in and building rest of exhaust

 

if you have access to a commercial oven you could always bake them for 25 minutes.

After several days post-header install my drivers O2 was done. I replaced both and was done with it..

On my 3rd gen, i replaced the single O2 sensor after a week with the headers.

 

interesting...

what should i get?

coated, uncoated, other option?

and cheapest of course


also im thinking of just doing an exhaust dump before the rear axle with either a 1 in 2 out or a 1 in 1 out muffler

what would be the difference i guess?

and should i go 3" or 2.5", car is about 80% ish stock, and the ORY outlet is 3" i understand so would i have to go from 3" to 2.5" right there?

 

Go 3" all the way back abd into the muffler with a 3" and out with a 3". The more air flowing through the eaiser it is on the engine. Are you going to intall a cat or just a muffler?

 

Uncoated headers for me destroyed one of my o2s and the other is on its way

 

here is my recent reasoning, and coating is on the outside

4th gen- I was keeping it and it was going to my son (nice dad huh) so coated headers

3rd gen- I was going to keep it as a weekend cruise night car but since then, a co-worker wants to buy it for his kids, my plans changed so uncoated were installed

If i'm keeping the car= coated. If I'm selling= uncoated

In the past, I've tended to go cheap and use uncoated. It's amazing what you'll accept for yourself but won't accept when doing for your children.

Don't believe me? Ask a dad if they've ever been sitting in a restaurant, ready to bite into their meal and one of their children wishes they ordered what you did. So, the nice plump burger, or Filet Mignon gets handed to your little darling and you eat fried chicken fingers.

It's how dads roll.