aftermarket exhaust question

[mypfizzle]

ok i have a racing beat exhaust. i love it.. but i have a question. after i drive for a while and park i get a audible click coming from the exhaust. i have asked a few people and they told me that it was just the exhaust cooling off but i wanted to see if anyone had any other ideas? the exhaust is stainless steel by the way.
thanks
john

 

[azeli73]

That's normal. it's just cooling down.