Arnold_Mal

I used to be into motorcycles, so I knew which exhausts were popular. My favorite was Yoshimura, Anyway, I'm out of the loop on car exhausts and would like some suggestions to review for a 2013 Civic Si. No engine mods except for K&N air filter (I know it doesn't count), and might install an Ingen SP Series (https://www.carid.com/2013-honda-civ...specifications).

Also, would like some guidance on whether changing the header along with the muffler is worth it or not. I'm willing to spend money if the benefits are considerable.

rick_rabies

its worth it if you get flashpro. flashpro alone with new cal will bump hidden power.
I got sudo exaust from ebay sounds great. not raspy and not ricy. full exhaust for my 8th gen Si was like $170 I think. header was $80. 0 issues with ebay header

DaveSi677

Get a proper 3" exhaust like the Ktuned one or Full Race... they have a very deep tone to them.

rick_rabies

dave is right. 3" is the way to go. but if your in a pinch the sudo exhaust is 2.75" and is cheap cheap. but its good quality and it sounds good. bolted up perfect

Arnold_Mal

Damn it! Just saw this, and it's too late. Thanks tho!

I went with the injen sp axle-back, and the car sounds great! It's pretty deep and loud at the higher end or when accelerating, but quite at the low-end and when cruising, which is what I was looking for.