downpipe

DC Sports Downpipe 12-15 Honda Civic Si | 9th Gen K24z7 | Enhance your power! The new DC Sports Downpipe / Race Pipe available for the 9th generation 2012-2015 Honda Civic Si is just another testament to DC Sports new revised ownership and direction. This downpipe is a quality made unit with an...

I'm interested in installing a high flow cat, but most downpipes with them pre installed seem to be around $500. My question is: is it possible to just get a muffler shop to weld in a high flow cat onto a catless downpipe or could i swap my existing cat for a high flow? I don't know if either of...