Overview Product Description 1967 to 1974 Chevrolet Camaro and Pontiac Firebird.80 Series Muffler - 2.50 Dual In / 2.50 Dual Out - Aggressive Sound Product Videos Custom Field Product Reviews Write a Review Write a Review × Flowmaster Flowmaster 1967-74 Camaro Firebird 80 Series Muffler 2.50 Dual In / 2.50 Dual Rating * Select Rating 1 star (worst) 2 stars 3 stars (average) 4 stars 5 stars (best) Name Email * Review Subject * Comments *