Fitting a back box to your Civic is the perfect way to improve the exhaust note of your car, with its free flowing design also enhancing throttle response. All of our exhaust back boxes are designed to be direct OEM replacement parts for quick installation and secure fitment Features: Manufactured from T304 stainless steel 2.25" bore with 1 x 4" tailpipe TIG welded, CNC machined flanges Performance back box enhances your exhaust note Freer flowing than OEM, improving throttle response
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