Our reproduction B-Body resonators feature the correct welded over the axle pipes. Be careful when searching for a new set of resonators, if you want them as originals, you'll need to make sure the pipes are welded on as original. These B-Body resonators are sold as a pair, one left and one right assembly. Please specify below if you plan on using factory sized exhaust tips, or larger tips, so we can make these to fit your application.