Well if it hasn't been proven then there's no proof that it actually loses power.

Losing power and not gaining any power are different things. I'd never buy an exhaust if it was proven to lose power, but if I was on the market for a dual then I'd be expecting little to no gains anyway, so sound would come first.

 

Having heard several in person I still think the fujitsubo legalis r is the best sounding exhaust for the s2000.

 

ASM's 70mm single is quiet and makes power. but quiet is subjective.

https://www.s2ki.com/forums/index.php?showt...&#entry16300813

 

sounds too stock, and not aggressive enough. Again, just my opinion.

 

bought an invidia v4 dual 70mm. I immediately noticed improved HP. I didn't put in on a dyno or anything but I swear the car had more pep than the oem muffler. I love the sound too. It is not loud by any means....i hear it is the quiet of the invidia line,...but i don't feel it is too quiet. BTW who really wants a loud exhaust that prevents you from hearing the stereo. I spent over a G putting in alpine this and that, a sub , and focal speakers...etc...etc...why would I want an invidia 1 or 2 and not hear all that I've invested in for good sound. I digress, the invidia v4 is a great compromise....not too loud and definately not too quiet. LOVE IT!!

 

If you want a quieter exhaust go Apexi.

 

I love my Mugen.

 

 

^ agreed as well...

but....I'm going to look into the Greddy Ti-C

 

many people are buying an exhaust for reduce weight, stock exhaust is HEAVVVVY. Buy single exhaust