i used to have this setup and all i have to say is, SH!T WHAT DID YOU SAY I CANT HEAR sH1T NO MORE. ITS TOO LOUD.

GOODLUCK I WOULD NOT DO IT, JUST BECAUSE ITS JUST HELLA LOUD. IT WILL GET LOUDER ONCE YOU PUT THAT TEST PIPE ON, AND PLUS YOU WILL GET MORE DRONE. (sorry im still screaming i still cant hear you)

this is how i look like when i had my invidia and testpipe.

 

how did it sound aside from being incredibly loud?

 

well i did a sound test by hearing so i put the topdown and right away i notice a whistle sound from 3-5 rpm. it does sound a whole lot better than my mugen though. cant explain it more but right after vtec this thing just fawkin scream my exhaust got louder and louder everytime im going up rpm..

i am writing a review right now you will see it soon.

 

awesome, thanks for your help bro.

what kind of power gains did you see with it?

 

minimal differance in power but sounds way better . the best ive ever heard on an s2000.

 

im running the V3 with a T1R test pipe (63mm) and like everyone's sayin, it's pretty loud. i had the cat on when i first put the V3 on, but i just wanted to see what it would sound like with the test pipe in. the sound is awesome. it does have a very unique sound (a slight boxer engine sound - which i love). at WOT it gets very loud. WOT in VTEC is extremely loud (I got black flagged at Carolina Motorsports Parkway for being too loud). In fact, this exhaust setup has caused me to speed less due to fear of being heard by traffic officers. i hardily ever go into VTEC anymore because i know a cop wouldn't even have to see me to know i was speeding. but the car sounds so good under VTEC (3-4k) i don't even care. It's the best sounding combo for the s2000 if you don't mind the high volume

 

oh yeah, going from cat to test pipe, i noticed that there was a lot less sound inside the cabin after i installed the test pipe. the exhaust is louder, but all the sound is behind you, instead of beside you (the passenger floor where the cat is) so it is less loud inside the car.

here's a nice video by one of our fellow s2ki members. not sure if he's running the V3 or not though...
http://www.youtube.com/watch?v=FPcaX2UjbIY