Cost for dual exhaust?
I installed a summit 2.5" kit on my car. They sell for $250 and include the mufflers.
http://www.summitracing.com/parts/sum-680144/overview/year/1974/make/plymouth/model/duster
Fit was great, I had to shorten a couple of pipes with a sawzall but didn't make any other modifications. Whole thing was done in an afternoon with the car on jackstands on the front apron of my shop. I did end up swapping out the mufflers for dynomax ultra-flo's.
If you have the stock manifolds all you would need is a set of headpipes.
I installed a summit 2.5" kit on my car. They sell for $250 and include the mufflers.
http://www.summitracing.com/parts/sum-680144/overview/year/1974/make/plymouth/model/duster
Fit was great, I had to shorten a couple of pipes with a sawzall but didn't make any other modifications. Whole thing was done in an afternoon with the car on jackstands on the front apron of my shop. I did end up swapping out the mufflers for dynomax ultra-flo's.
If you have the stock manifolds all you would need is a set of headpipes.
