I intend to use the original exhaust manifolds on the new exhaust system on my 70 Challenger R/T 383. My questions are; Did the original system have mufflers and resonators? Can I still get these same parts today? Anybody have part #'s or know specifics? TTI wants over a grand for the system from the manifolds back ($400 just for the tips). They certainly make a nice product, but if I can save any $ that would be nice. Plus, I don't really care for the sound of the Dynomax units they use. I would like to get as close to the original factory sound as possible. Heck, I wouldn't even know the original sound if I heard it.