im thinking about upgrading my exhaust and thinking about going with a 4 inch... or possibly 3.5. would i see any kinds of gains/losses? or possibly nothing?

 

Waste of money until you hit 1000hp+

https://www.evolutionm.net/forums/ev...5-exhaust.html


To add to it. Al (dynoflash) was making 1062hp with a buschur 3.5" exhaust. I see no reason for a 4" ever.


All I did was use the SEARCH button and found about 5 threads all at the top.

 

what for you want it loud?

 

straight pipes? ok, so it obviously has no gains/losses. would a larger exhaust make the car sound deeper? or just louder.

 

i have a straight pipe sounds sick, and i felt more low end power as well

 

Loud as hell. Once you change out the manifold for a nice equal length tubular piece (which im assuming you have) the rumble is gone.

 

yes unfortunatly. my megan sounded good with the stock turbo, but now i sound like an angry honda :'( i want buschurs SCCA catback, or something a little bigger

 

plus the megan fits like poo on my JDM bumper

 

Ya i too have a whole diff turbo/mani setup with a buschur tbe and i sound like a civic until i spool!


Which i had to cut about 4" out of to fit my jdm bumper. lol

 

yeah lol... idk my buddy has the buschur SCCA catback, and that thing sounds MEAN! i wonder if they make it in 3.5..

 

Look into what Al (dynoflash) was running. It was a buschur and he was good up to 1062hp. Wonder if I can find some vids.

 

I had 4" on my 4088r civic. It was probably overkill but it sounded awesome. I built it out of aluminum with a turn down right after the rear lower control arm. The full exhaust was 8-9lbs or something. Not sure if the car would have made more or less power with a 3" or 4". I would have to say that if you are running a turbo with a 4" v-band that warrants you to running a 4" exhaust system. But most shall be fine with a 3". I have 3" on my evo with a 4094r.

 

Mani changes allot, I had stock mani with a 3inch exhaust all the way back and it sounded great, loved the deep tone, friend sold me a Megan header for 60.00 and put it on that night at my place, went out and drove my friend back to his place after install and such, when the Mivec hit it sounded so much like a honda rice machine, nothing against Honda at all really. But I drove back home and took it off right away and sold it for more I am installing the BR turbo kit will see what it will sound like then, on my friends car it was super loud so will see soon.

 

My buddy Evo has a 4" exhaust on a AMS 35R and I don't think there is any power gains just sounds very ricer and loud as f*ck

 

http://videos.streetfire.net/video/H...-as_104589.htm

Sounds like a pretty ricey civic to me lol...btw thats my car open 4" down pipe which later on I put a full 4" exhuast on. I dont think anyone has videos of that setup on camera.