New Headers, sounds weird when cold

**skar** · 04-22-2006, 05:22 PM

New kooks stainless headers, off road Y pipe, Magna flow exhaust. Cold start exhaust sounds weird, I hear like a Puff sound, and it doesn't sound that good until the car gets warmed up. Once the car gets warmed up, it sounds great. Puffing sound goes away???? Also had it dyno tuned. Is this normal?

**Huskerz1** · 04-22-2006, 06:25 PM

Need more info. Is it under the hood like maybe one side or the other? Could be that one of your headers isn't completely sealed to the head but leak goes away after warming up because heat expands the head and header to seal. Check all your exhaust joints. Trying not to guess but the puff you hear could come from different things.

**Mr. Luos** · 04-22-2006, 06:50 PM

Most exhaust leaks are a tick.

But like mentioned...more info.
Is the car cammed?

**skar** · 04-22-2006, 07:18 PM

Car NOT camed. Only drove car once since header install. I also think that when every thing gets hot it seals. Where I had the work done they told me to bring the car back after two weeks to re tighten all hardware. My hearing is not that good. I will have to listen more and get back with you. thanks