I just recently changed too the cattman header setup to replace my stillen Y-Pipe setup that was giving me the BEEZ IN THE CAN noise.

Now the new setup is in, and occasionally i still get the BEEZ IN THE CAN noise. The exhaust sounds much better and much more toned. This beez in the cans noise only happens when the car starts up for the first couple mins of driving. After about 10 mins of driving and warming up, sometimes 20 the exhaust sounds PERFECT, like the absolute way and exhaust is suppost to sound.

What could the problem be? I was thinking the following. Small exhaust leek? A warming up issue?? Possibly a problem with the random technology catt replace possibly with a racepipe??? Could it be the stillen cattback? should i just sell it and upgrade the cattback????

i really could use some advice because it has been really bugging me. I put alot of money in the car, i only want the best and too hear the beez in the can noise just plain bothers me and makes me want to sell my max .

 

Might be an exhaust leak at one of the flanges since it's only when the exhaust is still cold. After driving the metal expands and closes the leak.

 

Anyone else know what could possibly be the issue? any other ideas???

 

ya, i have the cattman Y and it does the same thing for me too. only does that little beeincan rattle thing the first few min after starting my car and driving off

 

Yeah but its soooo annoying..... i mean i replaced the stillen Y-pipe so that i could get rid of that sound

 

Take out a sprk plug and put a little ATF into the hole. Put the spark plug back and turn the car on, engine running. Get under the car and look for smoke.

 

My headers are kind of the same way. I get a buzzing sound from 1.5K-about 3K. It does lessen as the car heats up, but never fully goes away. I put exhaust wrap around the flew section and it helped alot. But it's not much different than my budget Y-pie.

I run stock cat and cat-back BTW.

 

ya around 1.5-3k myself. but it does it maybe the first time through shifting gears. after that its kool. maybe thats why it never really bothered me that much since its only a minimal time of doing that. maybe ill try the spark plug thing he mentioned above later this week

 

LOOK: I KNOW FOR SURE ITS THE STILLEN B PIPES, i replaced my entire exhaust the only thing i didnt change is the muffler, i originally had all stillen, then i replaced y pipe with cattman still had beez noise, then i replaced the cat converter still had beez noise, then finally i got the cattman b pipes, PROBLEM SOLVED. I KNOW FOR SURE so just replace those ****ty stillen b pipes, i left mine at the muffler place

 

Hey i was thinking about a stillen but i went witha greddy becuase of the sounds i personally think i made the right decision i bought it from this website with a really low price that i couldn't find anywhere, autoaccessorystore.com

 

ITs the y pipe. All the y pipes do the same thing. it will never go away. also i heard most stillen exhaust do that with the y pipe on there. The headers should tone it but it will never go away.

 

way to bump an oldie.

My y pipe is buzzy untill it warms up. I think its just one of those things.

 

i got the obx headers and y pipe have no problems or the bee sounds in them....

 

no bees here either, change the crush gaskets betweeen all components

 

My cattman headers have no bee in a can sound. Maybe the cattman y-pipe might buzz, but you have the headers and from my personal experience the headers do not. The noise is probable from the b-pipe especially if it is not resonated. If you replace the cat with a test pipe than the noise level will only increase.