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7L V8 Automatic/ Manual Transmission Rear Wheel Drive Coupe/ Convertible
which enhances the available air volume - resulting in added power while retaining an installation process that is quick and uncomplicated
7 (J65) 1980 Pontiac Firebird Engine: 4
Full 5/8 ID through bore
APEXi N1-X (N1 Evolution Extreme) Universal Muffler, Turbo (156-A022) 1554 7L V8 Automatic/ Manual TransmissionThe N1 Evolution Extreme Muffler is a premium upgrade based on the RS Evolution Muffler, enhanced with full titanium tips. It's a hybrid design that combines the power and free flowing nature of our N1 Muffler with the quiet and discreet sound output of our Hybrid Megaphone Evolution Muffler. This muffler is the result of APEXis patented megaphone piping structure design and enlarged piping diameters, ensuring ultimate performance for turbo charged
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