1955-1956 Chevy Exhaust Extension V8 2BC 6 Cylinder SingleThis 1955 1956 Chevy Exhaust Extension V8 2BC 6 Cylinder Single is a reproduction of the original GM part. This beautiful chrome plated accessory has all the detail and quality of the original with one exception: you won't have to search endlessly to find ours! The accessory exhaust extensions eliminate discoloration of the rear bumper, and this one has an inner heat baffle to protect itself so the beautiful chrome plating won't blue. # 379 will work