i was driving home yesterday and i noticed my exhaust was sounding weird.ive already replaced the pistons and its on the factory tune. so it shouldnt of popped another piston. compression is fine. im running out of things to check


i have the ss/sc dp and pacesetter exhaust. i thought it may have been my exhaust leak but i fixed that and the sound is louder

 

is it missfiring?

 

no it runs good. no miss/ hard start as far as i know its just a new sound

 

souds to me like its not fitting flush with the header gasket to the head..

 

its not a leak, its comming out the back of the exhaust

 

Many of the LSJ guys speak of WRX sound and it's usually a massive engine problem.

 

i think it may be my cat that is screwed up, im going to go get it removed and see if it still does it

 

Did you ever find out the cause of your problem. I started a thread about this on my car. The first time I had a bad coil pack and it sounded just like a WRX while it was on 2 cylinders. Now, it has this less noticeable WRX sound and nobody can tell me what's the cause of it. It's not the cat or resonator. I was wondering if it could be the gasket b/n the head and exhaust manifold.

 

well i decided against cutting out the cat.... i have a feeling my car needs to be tuned, i am smelling fuel from the exhaust. there is no missfires so my coils are fine

 

may be the cheap pacesetter exhaust no offense

 

hmm.

 

lol it doesnt take 2 years to make this sound

 

i have a pacesetter header and mine dont make that sound

 

Ya mine sounds like a wrx and its not a good sound to have. You can see in my sig what caused the wrx sound(#4 & prob#2gone)

 

yeah i seen your video, sucks dude i had the same problem with #4 but my car runs fine, no miss, no lag, no problem but the odd sound

 

Have you compression tested it?

 

yes and all cylinders are fine

 

Damn, well beats me then.

 

yep, im a tech and im confused all to hell =\..... since trifecta is the only tuning sourse for the l61 i have to wait to see if that is it

 

yeah i think data logging it with trifecta would be your best bet.

 

can u make us a quick vid? that would help us instead of guessing.... just a though lol