Invidia Q300 Catback Exhaust Civic Si Coupe (2012-2014) Honda You can expect increased dust

You can expect increased dust but a mimimal increase in noise

leading to engine failures and premature wear

Machined from Aerospace Grade 6061-T6 raw aluminum forgings with an industry-leading 12

Spring Rate: F 229lb/in R 196 lb/in

The second receives the cooled charge air from the core and delivers it to the throttle body

Invidia Q300 Catback Exhaust Civic Si Coupe (2012-2014) Honda You can expect increased dustThe Invidia Q300 catback exhaust system for the Honda Civic Si sounds as good as it looks. The Q300 features mandrel bent 70mm stainless steel piping and a free flowing oval style sport muffler to provide better exhaust flow for improved performance. Bolting up a Q300 to your K20 will allow your Si's sonorous exhaust note to come through loud and clear when you want it to, without producing harsh or overly loud overtones; the perfect choice for those