W O T

Just looking for some people that are running boost with an open downpipe

I plan on running high boost on a single cam and was thinking of doing a side exit exhaust with a cherry bomb resonator style muffler to tone it down, but I can save a good bit of money if I just fab up a 3" downpipe

Even now Im running just a header with the cherry bomb resonator and the car is loud as **** and if I take it past 3k it sounds like *** (but I dont take it high because I have 8-9psi oil pressure lol)

What are your guys thoughts/opinions on how loud it is just mopping around town, you get stopped alot for it?

Thanks

ralphie14

I would think that it would be about the same as open header. The only difference is that it would be routed though the turbo making it a tad quiter but I think it would still be louder than ****.

boosted-delslow

Its going to be pretty damn loud. It sounds cool but it gets on your nerves after awhile.

Patron

Well I ran it without a downpipe for 10 miles, just so I could have one fabbed up. It was ridiculously loud. I would highly reccommend getting one hooked up ASAP.

DefiantGSR

E- cutout is your friend.

t3h_sl0w

If anything...running open down pipe i'd at least put a hi flow cat in there, and fab up 3" pipe after it, then run it side exit...it'll muffle the sound quite a bit, but not hinder performance as much as a cherry bomb exhaust might....you also will still have a deeper tone with the hiflow in there as opposed to just running a cherry bomb style and gettin a little higher pitch...at least as i've learned from experience

(From a guy who ran open downpipe, with a hi flow cat and didn't get pulled over once with a 4AGE corolla )

CivicEJ1

This had been discussed many times before......search....

W O T

The cherry bomb actually sounded dam good n deep for a $30 muffler, then I smoked a speed bump and exhaust literally ripped inhalf after the resonator and thats what Im runnign with now

But does it even sound good? Open downpipe...?

I thought everyone running OD liked the sound... no?

wantboost

iTrader: (2)

open downpipe sounds cool at idle, cruise, decel and full boost. anywhere else andit sounds like ***. I'll be running open dp

bsixteen

heard it on a boosted gsr and it was LOUD. TOO loud IMO

Rory Breaker

Its way too loud to drive around with...even with my 3" with resonator and straight through muffler I still get people turning around with that "what the **** is that?" look on their face.

I ran open downpipe for a day and it seriously was ridiculous. I cant imagine if you live in a strict area that you wont get pulled over consistently.

evosol

i'm running open pipe and its not too bad... although i have it extened all the way towards the axle back... i think its quieter than those fartcans.

[QUOTE=newgsrdriver]Its way too loud to drive around with...even with my 3" with resonator and straight through muffler I still get people turning around with that "what the **** is that?" look on their face.
QUOTE]

the only time i get that look is when they hear the turbo spool up...

[QUOTE=W O T]The cherry bomb actually sounded dam good n deep for a $30 muffler, then I smoked a speed bump and exhaust literally ripped inhalf after the resonator and thats what Im runnign with now
QUOTE]

Lol... that reminds me of one of my friends. The only time when it sounds kinda crappy is when i'm decelerating at freeway speeds... it burps and gurgles really loud. I also did notice that once i tuned it really well it wasn't as loud as before.

eg6T

when i ran open downpipe it wasnt loud at all.you cant even compare it to open header,when i ran open header it was 10 times louder than open DP

depends on your manifold too,not very much,but you can hear a difference

evosol

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by CivicEJ1 &raquo;</TD></TR><TR><TD CLASS="quote">This had been discussed many times before......search....</TD></TR></TABLE>


"DO NOT TELL PEOPLE TO SEARCH. If you think the thread doesnt belong, report it to a mod and we'll deal with it. Remember, there's a ton of archived information, but technology changes as do specific situations. There is often not a definitive answer for many questions in this sport."

read the rules noob!

darylfiend11

I'm running open downpipe on my prelude. It's no where near as loud as open header. Try open downpipe first then if you don't like it buy the cherry bomb or high flow cat.

blackANESE

iTrader: (2)

My open downpipe is ridiculous. I just started it up b/c my car is at paint and it is loud as ****

W O T

lol, well I dont have a radio to drown out the noise, I, filling all that with gauges/wideband display

Sounds like open downpipe will be fun

Curtis2kul

im running open downpipe thats exiting right underneath the passenger side door, with the window up its not that bad, but with it up its really loud expecially on decel! Plus it gets lots of looks......the cops like to look also i just havnt had a problem with them yet

nsxmatt

I ran a open downpipe that exited right under the shifter. It was loud but not unbearable at all. I drove it almost a year this way and made many road trips over 500 miles in one day. Only thing I didn't like was the exhaust smell and on the long trips I would have liked it a bit quieter.

Best bet would be to get a $200 Kteller piping kit and run it to the back of the car. Even without a muffler it will keep the sound from bouncing under the car and keep you stink free.

evosol

there you go... thats the way to run it!

DENCIO

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by DefiantGSR &raquo;</TD></TR><TR><TD CLASS="quote">E- cutout is your friend. </TD></TR></TABLE>

blown_LS

Hehe I ran open o2 housing on my dsm. For some reason it wasnt louder then 3'' exhaust on my friends car. But when i was on it and wastegate opens then its loud as hell. I also heard many other cars gsr turbo, many dsm's, supras all runing open dp and they werent much worst then full 3'' exhaust.

DaveF

mine sounds like a hotrod class car.....

MooreBoost

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by evosol &raquo;</TD></TR><TR><TD CLASS="quote">


"DO NOT TELL PEOPLE TO SEARCH. If you think the thread doesnt belong, report it to a mod and we'll deal with it. Remember, there's a ton of archived information, but technology changes as do specific situations. There is often not a definitive answer for many questions in this sport."

read the rules noob!</TD></TR></TABLE>

You're right. I'm sure the way an open DP sounds has changed since last week.

platinum00

inside the car it is not that bad.

but i ran a 3 inch and outside the car it sounds nasy loud.

if your comparing it to a open header , it's not that bad.

platinum.