2 inches, but it restricts down to 1 and 7/8 inch inside the resonator. Also, the muffler is extremely baffled, therefore it doesn't flow very well. If you're planning on going to a custom exhaust, i would recommend 2.25 inch piping with a high flow resonator and a less baffled performance muffler.
Paul Woodward 95 SE V6 MTX KKM, 8mm plug wires, no badges, 75HP shot of THE JUICE, B&M T-Handle Shift Knob, MOMO Aluminum Pedals, Richbrooke e-brake handle, A-Pillar with Phantom air-fuel ratio gauge, voltmeter, and oil pressure gauge, Unorthodox Racing Pulley, In dash 5" TV screen, playstation one, Apex DVD player, Digital TV tuner. Coming soon, Sho-shop y pipe and 2.5 inch single pipe exhaust
Dyslexic man sells soul to Santa... Film at 11
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