Running Open DownPipe...

Facime

Leather work expert
Jun 1, 2006
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Corvallis OR
you could concievably overheat the floorboard and cause a fire....:aigo:
but you would have to probably run it really rich and on a track for a few laps for that to happen. As far as I know other than being loud there is no drawback.
 

Facime

Leather work expert
Jun 1, 2006
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Corvallis OR
Just get a muffler shop to put a flange on a piece of pipe that turns it loose just behind the front tire.
 

87soup

F*CK SMOG CHECKS!!!
Jan 23, 2006
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Sacramento
Dont run open in the run you can suck water back into your turbo's.... I heard of a 240 SR20 blow from that!!!!:nono:
 

Orion ZyGarian

Jeff Lange wannabe
Apr 2, 2005
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Sarasota, FLorida
www.suprastore.com
87soup;999183 said:
Dont run open in the run you can suck water back into your turbo's.... I heard of a 240 SR20 blow from that!!!!:nono:

How the hell would you do that on a 7M?!

Anyways I'm running it right now (open turbo actually, I need to bolt it back up) because of how gay my exhaust looked and was. I'm surprised that it isnt THAT much louder than with the full 3" and Megan fartcan. That being said, dont do it for long as it'll piss people off (including yourself eventually) and you'll want an exhaust that sounds GOOD instead of LOUD, which is basically anything; I've yet to hear a 7M running right that DIDNT sound sexy.

Here's how gay it looked:
p999329_1.jpg

which is why it now looks:
p999329_2.jpg
 

Rennat

5psi...? haha
Dec 6, 2005
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you dont boost it right? thats the WORST thing you could probably do to your engine... 1200+ degree exhaust shooting all around the inside of your head... jesus....

i would at the VERY least run a gutted OEM downpipe just to get the exhaust away from everything..
 

Orion ZyGarian

Jeff Lange wannabe
Apr 2, 2005
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Sarasota, FLorida
www.suprastore.com
Rennat;999334 said:
you dont boost it right? thats the WORST thing you could probably do to your engine... 1200+ degree exhaust shooting all around the inside of your head... jesus....

i would at the VERY least run a gutted OEM downpipe just to get the exhaust away from everything..

It hasnt left the garage with it like this. I have a Miata DD that I've used for the past 2 years. I still have a 3" DP from my old exhaust. It doesnt see boost as I have a boost leak at the cam cover pipes, so it wont rev over 3k, 3.5k or so when it starts to go positive.

On the way is the biggest Magnaflow they make and a resonator in addition to my DP.