While weilding the bung for my wideband sensor I was talking with some friends and we joked about John2K5's new exhaust. Well I decided to start my car with just the header for exhaust as a joke about who's car sounded louder.

Thus Cobalt SS SC Stage 2 on Stock Header no downpipe.
http://www.youtube.com/watch?v=wTt4Deb16PQ

 

sounds like a quad

 

haha rad

 

Wows. Lolz

 

Don't rev the car when its cold like that, not good for anything that requires oil pressure. Let it warm up a little first.

Sorry, just one of those things that really bothers me.

 

I know I had the car running for a few minutes before the video was shot I tuned it off so you could hear it start. But thank you for that info so those who do not know won't do it.

 

why was it without the dp... aftermarket?

 

He had the downpipe off of the car to do some welding.

 

This is funny just figured I'd post mine from 2 years ago lol.

What it sounds like on the same day for comparison

With Cat
http://videos.streetfire.net/video/M...tune_77141.htm
Without Cat
http://videos.streetfire.net/video/C...tune_77136.htm

Don't look at times it was back when I was playing with TQ managemant (how emabarassing )

 

^^ At work so I can't see the vids I'll have to check it out tonight but yeah without downpipe it is very noisey.

I could not hear the SC whine like it normaly does at all. Thats how loud it is.

 

Yes, have to love the pure sound of our cars with just a header. very very loud, I ran it like that on a race day and it was louder then the 10 sec cars there running just a custom header and downpipe. Lol but it still doesn't sound as good as the stock exhaust.