Austin05mustang

Hey guys, I just converted my 2005 v6 mustang to true dual exhaust with 40 series Flowmasters. It sounds awesome, but I have a slight problem. As you turn on the car and the idle is around 1k it sounds normal, but as soon as it goes down to 600 700 idle it does this putting sound on the exhaust, its hard to describe the noise so I might post a video. But if anyone has had this problem or knows how to fix it please share your ideas! I was thinking I might need to get my car tuned or get a cai. Im not too sure, ideas please! Thanks in advanced.

kput

Can you upload a video of the sound?

Where's it coming from? Up front? Near the rear?

What H or X pipe did you go with?

Austin05mustang

Yeah I will go record the sound in a few minutes and upload it asap. The sound is literally coming from the tips of the pipe. It almost sounds like its backpressured. We cut out the y pipe and did 2 straight pipes from the catalytic converters, i guess thats an h pipe? Not 100%

kput

It'd just be straight pipes, lol.
It might just be the exhaust burble...
depends on what the exact sound is though.

It could just be the lope of the engine coming through the pipes?

Idk crap about this stuff, so just going out on a limb :P

Austin05mustang

Im not too sure either, its just wierd because in higher revs the sound goes away. Its once it idles it starts making the sound. I think its something to do with the air flow honestly.

Austin05mustang

http://www.youtube.com/watch?v=jiuVB...1EGd7vZhHumGnU

This is the link to the video, you can hear the sound in the beggining a lot.

Rainson

is the tip hitting the bumper?

Austin05mustang

No there is like close to an inch gap from the bumper, like i said when the car turns on it sounds great for like 25 seconds then begins to make that noise

Austin05mustang

At idle it sounds like its running on air.

JimC

It's kind of hard to hear since you only let it idle for such a short time before starting to rev it up. Try another video, but this time let us hear the idle that you are complaining about.