How loud are open downpipes..?
 

ok so i am broke and prob.ly don`t have enough $ to get my rear section done befor the next drag meet.
so i am thinking may be i can take out the gasket right after the downpipe and run it like that....
how loud could it get?...as loud as NA motors?

Re:How loud are open downpipes..?
 

It will be to annoying for you to drive the car around like that. Besides the cops will pull you over every two blocks.

Re:How loud are open downpipes..?
 

Donald, so you just have a stock cat/exhaust? and that's what you're worried about?
If you can you make it Friday to Julio's, you can make a test pipe ( i have a 3 bolt flange you can have) and use your stock exhaust, or get a $10-20 muffler and use that 2 bolt flange you have. That way at the track you will have the required muffler. It will be connected to your downpipe.

Re:How loud are open downpipes..?
 

actuallyialreayd got a test pipe.
it just that i wanted to get rid of the 1.7 inches stock exhaust and muffler.

Re:How loud are open downpipes..?
 

i ran open downpipe for a couple days before i got my flex pipe on, and it was pretty obscene. however, i was able to drive by cops very very gingerly and not get pulled over.

it was fun to scare the crap out of other drivers though. the car sounded like total ass out of boost, but once the turbo spooled it supposedly sounded pretty evil

Re:How loud are open downpipes..?
 

How would an open down pipe compair (noise level) to say:

N/A ZC w/ 4-2-1 headers w/ 2.25" exhuast straigh pipe (down under gas tank and straigh out to a fat staight through ---- can.

that ---- was loud as hell and i would think that an open dp would be even quiter than that...

im going to prolly be running 2.5" all the way back and then be putting on some really good flowing muffler...

i want to hear my turbo spool up...

nathan

Re:How loud are open downpipes..?
 

im running an open downpipe right now. ive been running it like that for like 2 weeks now. i dont think it is as loud as and open header. its not bad at all. besides u can hear the turbo spool louder.just rumbles when u decelerating(sp) in vtec :). i have no plans of hooking it up anytime soon.i have heard cars with "coffee can" mufflers loader than mine.

Re:How loud are open downpipes..?
 

Open downpipes kick ass. They are quieter than a N/A motor with open header IMO. Faster spool, more HP, more intimidation. 8)
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Re:How loud are open downpipes..?
 

i love the sound of open down pipe you hear the turbo alot more too.....that high pitch noise is good........hmmm tasty

Re:How loud are open downpipes..?
 

I'm running open downpipe right now, it's alot louder than with my exhaust (straight thru to magnaflow) but it's definitly not as loud as open header. I've driven right by police and not gotten pulled over.

Re:How loud are open downpipes..?
 

my car was quieter with an open turn down off the turbo than it was before the turbo with 2.5" exhaust and a resonator and muffler.

Re:How loud are open downpipes..?
 

I ran the GST open downpipe for a couple of hours once, it really didn't sound bad at all. It sounded like it does right now (with full free flow exhaust and ----) but just a lil bit louder.

Re:How loud are open downpipes..?
 

yep, and I even got a guy in a camaro telling me that i needed to tighten down one of my exhaust bolt lol. It was louder than his v8 camaro. ;D

Re:How loud are open downpipes..?
 

^^^^^

Now having open downpipe on a honda and having open downpipe on a v8 is a totally different thing. Don't get it confused. I've ran open head before and it is ------- LOUD - especially when dealing with a v8

Re:How loud are open downpipes..?
 

yeah true man. I'm not trying to compare my open downpipe to his exhaust. Beside he was running a stock exhaust. Where his sounds good and my open down pipe sounds like crap. I just thought it was funny how my open down pipe was annoying to him that's all. Had to be there to see the whole picture. I think what the guy in the camaro was trying to say was that my ---- wasnt loud it sounded like ass lol

Re:How loud are open downpipes..?
 

what about open dumptube? i have no idea how it sounds or when its actually dumping in videos.

turboDXcoupe nice sig pic. im stealing it.

Re:How loud are open downpipes..?
 

When i had my old turbo crx i all i ran was open downpipe.It sounded pretty sick and never got pulled over.

Re:How loud are open downpipes..?
 

Same principles with open downpipe v8 as open downpipe i4. Cadracers Turbo SBC was open DP for along time and it wasnt any louder than my open DP Ls/vtec. The only time it was louder is when we tried that t4 and ran open DP, With the exhaust housing being so much bigger it probably added a good 20% audible noise.

It's not bad to drive like this, but it will bring the cops attention, especially if your like me always ripping up and down streets in your car, so becarful. :)

Jeff

Re:How loud are open downpipes..?
 

Yea im a little nervous, because im not going to be able to have a downpipe for my setup when i get it, i dont have any welding experience, and eventually will pay for it.

So a dsm o2 housing wont fit a 4th gen sohc? does anyone know how much off it is? could i bang it with something so it would fit? It would make it a lot easier!!

Re:How loud are open downpipes..?
 

Wouldnt it be nice if it fit? hehe, definatly not going to happen unless you cut about 2in by 4in section out of your front cross member. Once you do your first mock up you will see how badly it would hit. Your better off making the custom o2 housing and custom DP.

Jeff