Will these downpipes work?

[talontsiboy24]

i have a ported 2g exhaust manifold with big 16 turbo so would i need a 2.5" entrance or 3?

would either one of these work? http://www.extremepsi.com/store/customer/popup_images.php?productid=20724

http://www.extremepsi.com/store/customer/popup_images.php?productid=20721 <<-----this one has that bend in it at the end and the one i have on my car now looks like the 2g downpipe just going straight.

 

[redyute1]

You need a 2.5

 

[talontsiboy24]

would either of those bolt right up?

 

[9!'clipseDOHC]

Yes they will bolt up. Make sure you are getting the AWD downpipe though. I just bought the punishment racing 3" downpipe, looks exactly the same, full 3" inlet and it bolted up to my 2g o2 housing without any problems.

Hope this helps!

 

[talontsiboy24]

Yes they will bolt up. Make sure you are getting the AWD downpipe though. I just bought the punishment racing 3" downpipe, looks exactly the same, full 3" inlet and it bolted up to my 2g o2 housing without any problems.

Hope this helps!

i have a ported 1g o2 housing so will either downpipe still work since there 2.5" entrance?

 

[9!'clipseDOHC]

i have a ported 1g o2 housing so will either downpipe still work since there 2.5" entrance?

I just tried my 1g o2 housing and it fits the same as my 2g. Here are some pictures to help you out:

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In this picture you can see the difference in the openings from my 1g unported 02 sensor housing and the punishment racing 3" downpipe. My 2g o2 housing is on the turbo.

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This one shows how the 1g housing fits on the 3" downpipe. It covers the whole opening, just make sure you get a gasket that will seal well. Also notice my snazzy DSMtuners mechanics gloves

Hope this helps!

 

[talontsiboy24]

I just tried my 1g o2 housing and it fits the same as my 2g. Here are some pictures to help you out:

You must be logged in to view this image or video.

In this picture you can see the difference in the openings from my 1g unported 02 sensor housing and the punishment racing 3" downpipe. My 2g o2 housing is on the turbo.

You must be logged in to view this image or video.

This one shows how the 1g housing fits on the 3" downpipe. It covers the whole opening, just make sure you get a gasket that will seal well. Also notice my snazzy DSMtuners mechanics gloves

Hope this helps!

well the megan racing one has a 2.5" entrance and then goes str8 to 3" but with fully 3" i wont have room i think?

 

[9!'clipseDOHC]

Oh. I guess I misunderstood your question. Yes, of course a 2.5" inlet on the downpipe will fit. That will fit the best. I thought you were asking if a 3" inlet would fit, which is more of a stretch because of its LARGE size, and I was showing you that it will. So to answer you question YES a 2.5" inlet on the downpipe (AWD) will bolt right up to a 1g ported o2 sensor housing! Sorry for the confusion.

With full 3" you wouldn't have room for what?

 

[talontsiboy24]

Oh. I guess I misunderstood your question. Yes, of course a 2.5" inlet on the downpipe will fit. That will fit the best. I thought you were asking if a 3" inlet would fit, which is more of a stretch because of its LARGE size, and I was showing you that it will. So to answer you question YES a 2.5" inlet on the downpipe (AWD) will bolt right up to a 1g ported o2 sensor housing! Sorry for the confusion.

With full 3" you wouldn't have room for what?

but would this one fit on a ported 1g housing even though its for a 95-99 gsx? EXTREME PSI : Your #1 Source for In Stock Performance Parts - Megan Racing 3" Downpipe: Mitsubishi Eclipse 95-99 AWD

Oh. I guess I misunderstood your question. Yes, of course a 2.5" inlet on the downpipe will fit. That will fit the best. I thought you were asking if a 3" inlet would fit, which is more of a stretch because of its LARGE size, and I was showing you that it will. So to answer you question YES a 2.5" inlet on the downpipe (AWD) will bolt right up to a 1g ported o2 sensor housing! Sorry for the confusion.

With full 3" you wouldn't have room for what?

i have a big 16g so do i really need a 3" entrance or 2.5" to 3" is fine?

 

[talontsi18]

but would this one fit on a ported 1g housing even though its for a 95-99 gsx? EXTREME PSI : Your #1 Source for In Stock Performance Parts - Megan Racing 3" Downpipe: Mitsubishi Eclipse 95-99 AWD

i have a big 16g so do i really need a 3" entrance or 2.5" to 3" is fine?

Don't use a 2g downpipe, Megan racing makes a 1g AWD downpipe as well so just buy one made to fit your car.

2.5" to 3" will be just fine and fit better.

 

[9!'clipseDOHC]

talontsi18 is correct. You want the 1g AWD downpipe. No you don't need a 3" inlet. 2.5" inlet to a 3" downpipe will work best for you. I was just wondering why you wouldn't have room for a 3". Anyways, here is a link to the one you need: Megan Racing 3" Downpipe: Mitsubishi Eclipse 90-94 AWD

Also for you to consider is the the Punishment Racing 3" Downpipe for a 1g AWD. It's $10 cheaper and they're free shipping is actually free, ExtremePSI charges a $7 handling fee on every order.

Either one is a good deal though and they will both work with your set up.

Hope this helps!

 

[talontsiboy24]

so a 2.5" entrance str8 to 3 will be better with the big 16g turbo? do u think i should upgrade my o2 housing to a ported 2g or the 1g ported is fine?

 

[9!'clipseDOHC]

so a 2.5" entrance str8 to 3 will be better with the big 16g turbo? do u think i should upgrade my o2 housing to a ported 2g or the 1g ported is fine?

Yes, 2.5" will seal better because it is the same as the outlet on the o2 sensor housing.

A ported 1g o2 sensor housing should work fine. The 2g is supposed to flow a little better unported, and is less prone to cracking so can be ported more, but I doubt you would notice a difference. I would keep the ported 1g until it cracks, then upgrade.