[mike@x-ph.com]

Originally Posted by pbonsalb

I have never had an exhaust header or downpipe crack from wrapping but I have read others writing about it. Maybe it is so much more effective than coating that so much more heat stays inside the pipes and they crack?

I don't recall ever having a warranty ticket due to a cracked F90 M5 downpipe. MAD or any other brand we offer.

[Info@mad-us.com]

Originally Posted by pbonsalb

I have never had an exhaust header or downpipe crack from wrapping but I have read others writing about it. Maybe it is so much more effective than coating that so much more heat stays inside the pipes and they crack?

My educated guess would be due to the pipe expanding and contracting from the extreme heat thats now held in the pipe causes it to stress over time and crack.