Review on DC Sports HHC5019 Ceramic Coating by David Romo

Will not fit 02 Civic Si. The pipe was exactly the same diameter as the standard exhaust manifold. If you install this on a k20 engine you will not increase consumption. Since then the picture associated with the item has changed but when I bought it there was a different picture of the item I needed. This seller error set me back a week to complete the motor replacement. The only reason I give 2 stars is that the build quality seemed top notch, but it would serve no purpose other than replacing the stock exhaust manifold with a k20a3 as the pipe diameter is exactly the same as the stock header. I'm not even sure why that is.