May sound like a dumb question but did your mechanic check to make sure there is a solid connection between the Y pipes are Art pipes and that the gasket is sitting flush? Possible excess vibration could cause it.
We've had problem with a customer's car here because the Y pipe bolts was cracked between the flanges. It wasn't leaking however it was vibrating.
__________________
Call us 855-998-8726
Email us at sales@jmautoracing.com
Text us at 516-287-8522
JM Auto Racing
|