O.K. Mr Guru Stan Sir. When I built the exhaust system for the Batwagon I duplicated the design of the AAR Cuda system only I did it in 2 1/2" instead of the AARs 1 7/8". 2 1/2" S.S. all the way back from the cast iron headers to the S.S. Flowmaster reverse flow 2 1/2" in and 2 1/2" out to the reverse bend and then out thru' '71 Dodge-Plymouth fluted S.S. tips. No X over, no H pipe, just 2 seperate 2 1/2" systems all the way back dumpin' fumes. How do I quiet that system down because from what I'm hearing here adding resonators up stream is pi**in' in the wind? I love sound the way it has but I can not carry on a conversation with any one riding in the beast without hollering and the AM and AM-FM-CD-cassette and the serius radio tunes were a compleat waist of $ because the decibel level of the exhaust is in the stratosphere. Those reverse flow Flowmasters worked fine for Jack Rousch and the 5 liter 'Stangs he sent down the road in the early 2000 years. I can't believe my 440 makes that much more noise the 5 liters 302s with the huffers he hung on 'um! Whatz my fix oh Guru?
I am glad you brought this up. I have not spent any time under my wagon yet and made the Assuming mistake. I assumed that there would be room for resonators, I mean in a car this size how could there not be. I think the addition of an H / X pipe may be part of the solution. Since space is a concern I wonder if there is somewhere that the pipes can be siamesed together similar to some of the later model performance cars (SRT8 Challenger for example). I also remembered that Chevrolet made a chambered exhaust on the '69 Camaros that was not much larger than the exhaust pipe itself. If you used that in conjunction with your current exhaust and trimmed the length to tune the sound would that dampen the sound enough to make conversation and music more easily heard? I know the Camaro mufflers were loud when used alone, but the restriction was supposed to be really low. I remember going with a friend to pick up his new car an being stopped on the way home for loud pipes.