Okay, so i need to get a new cat because mine is old and rattles(no its not the heat sheild), if anyone who has gotten this before could let me know if there is a hole for the o2 sensor.

Thanks Tweav

And this is the cheapest place i found the cat, but idk if its trustworthy, so if anyone has used it lemme know please.

http://discountperformanceexhaust.co...5-p-20291.html

 

Yes... it has the o2 holes/bungs

 

i have it on my truck, it sounds good, but it kept throwing off my o2 sensor so i had to do the spark plug non fouler trick to trick the sensor.

 

Maybe there's an underlying issue that you haven't fixed yet? It shouldn't throw codes.

 

I'm looking at getting one too. That's pretty cheap

 

what is the spark plug non fouler trick thingy? i have a magnaflow too but idk if its throwing off my o2?

 

Non-fouler trick is for the post cat O2. There is a DIY in the faq section about it. Basically, the PCM simply thinks the cat isn't doing its job properly. Some of the aftermarket 'hi-perf' cats get that 'hi-perf' tag by flowing better, because there is less restriction, but, the way they accomplish that has the drawback of not working as well as the factory unit. So long as you can pass inspection though, its all good.

 

so how do you know, exactly, if you need to do this or not? (btw, thank you [HeyYou], for answering all of my questions, seems like you answer just about all of them i have..

 

If, after you replace your cat, you start getting 'catalyst efficiency' codes, the non-fouler trick will fix that. If you don't get the codes, don't worry about it.

You are welcome.

 

I wonder what the Shipping price for that is?? Summit is free, but about 75 bucks more for the whole set up..but if I can save money, by all means.