Ho long do aftermarket exhaust parts last?

[shallowreef]

I mean cats and mufflers? I think my mufflers are on there way out and my cats are throwing codes.

The mufflers are 3 years old and the cats are 2 years old.

How long do they last? Do they need to be replaced ever?

 

[streethorse]

Are you getting code 153 ? If you clear the code does it come back?

 

[shallowreef]

I'm not sure what the code is exactly i have it on the service ticket at home i think. I tried disconnecting the battery before to get rid of the check engine light but it came back on like 2 days later. It use to be on for like a week and then go off for and it was the cats then too.

 

[streethorse]

I started getting #153 a couple of months after adding my bassani w/cats.
It would come and go like yours. I replaced the 2 front O2 sensors and changed back to my stock cai w/K&N instead of the MAC cai. After 1 month no light.
The stock H-pipe has the O2 sensors right in the 1st cat so they heat up
faster than high flow cats.

 

[shallowreef]

I'm planning on pulling the cats out soon anyways and running straight pipes and mil eliminators so that should end the problem right away.

The reasn i ask about the mufflers is that i think they sound a little rattley instead of that deep throat sound that i remember them having when i first put them on. So i was wondering if they might be shot. People tell me that my car sounds good but i just don't like that little bit of tinny rattle that i hear.

 

[streethorse]

Yeah, mufflers rot from the inside out.

 

[Brute03]

ummm... i think the best place to start would be getting the codes read....

 

[silver4.6]

I've got a flow master exhaust and my left muffler starter to rattle about 3 months ago, it's driving me crazy. I need to find a part # for it so I can have it replaced. 40k miles and it's done.... I thought they had a million mile warranty, I guess I'll have to look into that.....

 

[shallowreef]

So i'm not crazy when i think my muffler is on its way out?

 

[04fullitgt]

Have you checked your muffler bearings

 

[shallowreef]

huh?

 

[04fullitgt]

wha?

 

[jivepepper]

My macs are 7 years old. They rattle pretty good. I plan on replacing them next month.

 

[mustang50v8]

I thought they had a million mile warranty

the million mile warranty is k&n air filters

 

[Mustang5L5]

I have a 4-year old flowmaster cat-back on my car

57K miles, and driven in salt and slush and they are still silver and rust free.

 

[joshheat25]

My Stainless Steel bassani Cats went to **** after 3 years, The mufflers and The rest of the system is good with the exception of one other bolt that is messed up.

 

[shallowreef]

My SLP aren't rusting they just don't sound as good anymore. Once i hear how loud my car is once i pull the cats i am going to debate either going with LM2s again or Powerflos. I know for a fact that LM1s on a O/R X-pipe do not sound good at all. way to crackley and poppey.