i went to a proffesional muffler shop to maybe put dual exhaust on my car he said that i couldnt cause there is a chance it would cause vapor lock and that they already had to take one dual out from another V-6 mustang cause it was vapor locking is there a way to go around that problem i am thinking about side exhaust but i think it is illegal in colorado i have a 2000 V-6 mustang anyways u can post here or email me at
Corypeele@aol.com