rave valves exhaust leak (smoke)

[americlean1]

I recently found a 97 challenger in showroom condition in this guys wharehouse. It run great ,but has an exhaust leak comming from the left rave valve. what would fix this from smoking up the engine compartment?

 

[El Toro 33809]

It sounds like it could be a seal. Maybe a cracked cap. Perhaps a poor installation. Probably a simple fix.