Stock pipe is enough for the reduced volume. Start date jul 16, 2015;

Subaru forester, Subaru, Japanese domestic market

Designed to extract maximum power from naturally aspirated k24z7 engines, our high flowing design delivers significant power and torque gains throughout the power band by reducing back pressure and increasing flow.

Catted vs catless downpipe civic si. 2013 civic si coupe cbp current mods: The reason i'm asking is because afe says this exhaust adds 10 additional whp to a stock si. Once upon a time, there were gains to be had for removal.

3 seems like a lot for a 2.4 liter engine. Does anyone have an si with this downpipe that could record a sound clip bc i know the si exhaust is completely different and flows better and will therefore be louder and carry more rasp. All of our downpipes come with a unique stepped design, which increases.

Notify me when this product is available: This has not really been the case since the mid 90’s. 2012 to 2015 k24z hpd crate engine, 17x8.5 rota grids in royal racing bronze, koni adjustables w/ skunk2 springs, rv6 catted dp, passwordjdm cold air intake, jdm red badges front and rear, passwordjdm carbon fiber engine covers (misc.), steering wheel emblems and key fob, custom 2.5 inch exhaust piping paired to injen axel back exhaust.

Notify me when this product is available: By reducing back pressure and increasing flow, this is the highest flowing and strongest downpipe available for the 9th gen honda civic si and acura ilx. Civic si jul 5, 2018 #13 sounds great.

Money is in hand to be spent on physical gratification. Full race vs skunk2 downpipe. All orders will be processed the following week.

2.5 could give you a more linear power band, especially if you don't have a tune. Hey guys, i’m considering going in on a downpipe for my next mod, but i’m a little unsure which way to go. But, i can't decide on which one due to some.

Check out the details and design below that went into the 27won performance downpipe. The first cat was failing and went with an invidia catless downpipe. It's 2.5 which might be better if you're not going forced induction.

It might be worth checking out the rv6 catted dp as well. From what i understand catted vs catless should be reasonably similar with the catless having slightly better gains. The downpipe (cat) and front pipes that replace our stock ones are larger in diameter (2.5 to 3) than the stock one (2).

The 27won performance downpipe for the 2016+ honda civic si, sedan, coupe, and hatchback provides a no compromise solution for power, style, and fitment. Afe power has seen potential on improving the stock design, by using mandrel bent 304 stainless steel for optimum flow and corrosion resistance. View full product details →.

Ok i just bought a used si 8thgen exhaust. A catalytic converter utilizes complex chemical reactions to turn pollutants into less bad pollutants and exhaust. Read on, and see with your own eyes how powerful you can become by killing your cat.

I’m thinking of going catless, but mainly for the cost break. #17 · oct 16, 2013.