4130 Fabrication 9th Gen Civic SI Exhaust and Down Pipe Package includes the following.
Invidia 12+ Honda Civic Si Q300 Rolled Stainless Steel Tip Cat-back Exhaust
Skunk2 12+ Honda Civic Si Alpha Downpipe
These are the parts that We have paired together with great success. With noticeable power gain and great sound quality. The Invidia style exhaust offers a mild sound at low rpm and an aggressive sound at high rpm. Making this combination great for around town/highway or drag strip.