Twinloop muffler

What are the differences between the oval and round designs of the xforce twin loop muffler i.e s10 vs s12.

Which one would you suggest?
Also with inlet size, if my exhaust setup was 2" would that mean I should be getting 2" inlet, same with 2.25" or can I can get any size and fit.

Is it easy to fit? else how much would I be looking at for installation for a dc4.

Thanks in advance!

i think one is ment to be abit sportier then the other but not much diff. iv had the s10 on a civic sedan before, was pretty good ,quiet deep tone with low revs but sounds really nice with highr revs no tingly sound like a cannon.

if ur getting a catback and rest is stock 2-2 1/4 inch is enough for a gsi.
i would recommend 2inch, any bigger and ull be losing torque.
supply and installation of s10 twinloop catback 2inch mandrel bend costed me $500 should be around that price.

i had the oval one
it did sound a bit racier note
then compare to the round one.

maybe its just me?

its just you =p vtec'n everywhere

doesnt matter what size inlet you get.. any competent exhaust dude will be able to weld it up regardless of size.. that said though.. will be much easier if you had matching inlet to exhaust piping..

i say get the oval, looks better i say. but thats jut my 2c..

So overall, the oval (s10) vs round (s12) designs are all about looks?

i had the oval and round one... same shiattt

i agree get the oval(s10) it lookes much more better, the s12 looks too stockiest for my liking lol.

s10 (looks like a large oval) is louder than the s12(looks like a barrel).
s10 is abit less restrictive than the s12.

Had both, just depends on what you want from it

looks wise, its all a choice

Looks like s10 is the way to go :thumbsup:

street=s10
track=s12

remember that the resonator/other piping stuff also reduces sound