Well I havent been around here for a long time... Probablly at least 3 years since my last post. Question... I have an Apexi WS exhaust on my car with a warpspeed Y and Cat. Just since sunday I have noticied a really bad rattling in my exhaust. Mostly from 1500 - 2200 RPMs then again at 3000. It started happening when I was autoXing on sunday.

I believe it is the muffler but not 100% sure. My question would be do you think I could fit my old stock muffler back on the exhaust? I dont remember the exact size of the stock muffler or of my piping now but wondering if i need to, could it be done?
Also any other tips on trying to figure out what the noise is from?? I have another autoX this coming weekend and need to figure something out ASAP.

Thanks!!

 

Are you sure its your muffler...
It could be the ypipe hanger...

 

I'd say its the muffler too .. if you can remove muffler give it a shake if it rattles or dust comes out - muffler=toast.

Surely you could decide between those 2 Ypipe hanger and muffler are at opposite ends of the car... rev it in neutral get someone to stick there head under there

 

Well I assumed that because I don't think I have heard anyone else have problems with the Apexi Exhuast.
It's not like I told him to buy a new hanger. I was just suggesting it could be the problem.

 

check that gay-*** little metal bracker under the b-pipe right behind the resonator.