MagnaFlow has a variety of 2011 Honda Civic catalytic converters that meet California Grade, OEM Grade or HM Grade requirements. Make sure that your Civic’s check engine light stays off and keep it smog compliant with one of these high flow converters. Each converter features durable stainless-steel construction and utilizes either a direct-fit or universal design compatible with Base to Si trim levels equipped with the 1.3L inline-four hybrid to 2.0L inline-four engine options. Select your ’11 Honda Civic’s specifications and state vehicle registration to ensure you buy the correct catalytic converter that fits your car’s needs and meets your state’s emissions compliance regulations.

Need a 2011 Honda Civic replacement exhaust system? Shop all BRExhaust 2011 Honda Civic Direct-Fit Replacement Exhaust Systems to find the best aftermarket kit to replace your 2011 Honda Civic OEM exhaust.

MagnaFlow offers 2011 Honda Civic exhaust systems from the Street Series. These exhaust kits feature durable stainless-steel construction and are compatible with the DX, DX-G, EX, EX-L, GX, LX, LX-S, Si and Sport trim levels equipped with the 1.8L gas inline-four, 1.8L CNG inline-four or 2.0L gas inline-four engine options. All systems are covered by a limited lifetime construction warranty. Select your '11 Civic's sub-model, engine size and vehicle details to shop all available exhaust systems for your car.