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-   -   Open downpipe for a street car? (https://www.miataturbo.net/diy-turbo-discussion-14/open-downpipe-street-car-33643/)

skidude 04-06-2009 03:26 PM

Open downpipe for a street car?
 
No.

My exhaust decided to take a vacation last Thursday leaving me with an open downpipe until my v-bands come in and I can find a shop to get it welded up. Fuck it's annoying. I can't imagine driving this thing on the highway for more than about 5 minutes. It's embarrassing too, people look at me on the street like I'm driving some shitty POS with a rusted-out exhaust.
I really do like the diesel-esque whirring at low-rpm though.

Conclusion: If you're considering running just an open downpipe on anything but a track-car, don't do it.

Turbo_4 04-06-2009 03:55 PM

Yeah, I'm running open downpipe until I can get my exhaust finished and it is ridiculously loud. The 5 min drive to work leaves me deaf:vash:

ApexOnYou 04-06-2009 04:33 PM

You guys are weak! I ran open down pipe for two years, it wasn't that bad.

nicacus 04-06-2009 04:39 PM

I did it for a week or two, wasn't that bad during cruise.. WOT was insanely loud
I wish I could get the Whirring noise without the car being super loud... I love that noise

Qckslvr 04-06-2009 05:39 PM

I drove mine home 20 miles open down pipe on the freeway, and it wasn't bad. Although this morning I was headed to the muffler shop and a cop was in opposing traffic. I put in the clutch, and crossed my fingers. He was half a block away, and I engaged the clutch, he flipped a u-turn and headed straight for me. Luckly I was in front of the muffler shop and ditched in his drive way just in time for the cop to give me dirty look. :D

skidude 04-06-2009 05:41 PM


Originally Posted by Qckslvr (Post 392012)
Luckly I was in front of the muffler shop and ditched in his drive way just in time for the cop to give me dirty look. :D

I like that story. I try to make it as quiet as possible when I pass cops, and knock on wood, they haven't come after me yet. I've ordered parts though so when they do I've got an honest story.

messiahx 04-07-2009 11:11 PM

Some of you guys are making me worried here...I plan on running open when I get the car turbo'd (finally) in the next month or so. Guess I'll have to get a shop to put on a resonator or something since I don't want to pony up for a full exhaust just yet.

ApexOnYou 04-07-2009 11:56 PM

If you are really worried about it you can listen to mine, although I can't drive the car..

TheBandit 04-08-2009 12:45 AM

If you just run pipe out the back it will make a great deal of difference. Open DP is definitely not fun, but just not running a muff is very manageable.

Atlanta93LE 04-08-2009 08:56 AM

I had an open DP the first couple days with the turbo bolted on...terrible. I got pulled over the first time out because of the noise :giggle:

hustler 04-08-2009 09:35 AM


Originally Posted by nicacus (Post 391974)
I did it for a week or two, wasn't that bad during cruise.. WOT was insanely loud
I wish I could get the Whirring noise without the car being super loud... I love that noise

yeah, I luvs it.

nicacus 04-08-2009 10:17 AM


Originally Posted by hustler (Post 392915)
yeah, I luvs it.

The ladies make the same noise for me

ZX-Tex 04-08-2009 11:51 AM


Originally Posted by nicacus (Post 391974)
I wish I could get the Whirring noise without the car being super loud... I love that noise

Get a ported shroud compressor housing. That will do the trick.

92Black&Tan 04-08-2009 12:08 PM


Originally Posted by Qckslvr (Post 392012)
I drove mine home 20 miles open down pipe on the freeway, and it wasn't bad. Although this morning I was headed to the muffler shop and a cop was in opposing traffic. I put in the clutch, and crossed my fingers. He was half a block away, and I engaged the clutch, he flipped a u-turn and headed straight for me. Luckly I was in front of the muffler shop and ditched in his drive way just in time for the cop to give me dirty look. :D


The thing about your story that pisses me off is that you drive through my small town [A bedroom community of Birmingham] on a pretty day and you can't swing a cat around without knocking some dude off a Harley and some of those things are so loud you can hear them for miles away. I have never seen a cop giving any of those guys tickets.

ajbalmat 04-09-2009 10:48 AM


Originally Posted by 92Black&Tan (Post 392978)
The thing about your story that pisses me off is that you drive through my small town [A bedroom community of Birmingham] on a pretty day and you can't swing a cat around without knocking some dude off a Harley and some of those things are so loud you can hear them for miles away. I have never seen a cop giving any of those guys tickets.

probably cause they're scared of bikers.

effing wanker police bitches.


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