dparm

Just get the biggest resonator and muffler you can. More volume = more sound deadening.

The stock mufflers are twin-loop, which is why they are so quiet. It's similar to the Mugen/HyTech design.

HvRRZ

My Custom 3" Exhaust - here is my old 3" system. The quality isn't good, but you get the idea of the sound. I used a long resonator, but not a canister type. Similar to what the JIC systems come with. Ended with a HKS carbon titanium turbo muffler.

I experienced no loss of torque bottom end or top end.

chimmike

sounded like it buzzed a little but if it shows gains, it's worth it. My gsr powered civic buzzes some, and because it's a civic, I wish it didn't, lol.

HvRRZ

actually it didn't. video is just really shit quality. It had a deep tone, and would scream at WOT. Those who heard it said it sounded like a jgtc car at higher rpm.

chimmike

nice!

Terror

I seem to remember seeing a Dyno around here, which showed a pretty decent gain when the exhaust was increased to a 3 inch system.

Of course, as with all bolt on parts, tuning would be the best thing to do to realize the greatest possible gains.

VtecSpool

I'm running 3'' on my bolt-on my05 and love it!

intake
header
testpipe
exhaust

http://www.youtube.com/watch?v=Tzpj1-kR1bY
http://www.youtube.com/watch?v=OE7bb7FysG4

pinoyk20

will 3 inch exhaust ipings work on a f20c 2liter engine with bolt ons??? like header, intake , EMU testpipe??? or will i lose power? thanks!!

S2Kage

Dyno it

chimmike

hi.

read this thread.

thanks!