Evo III Vs. Megan Racing O2 Housing

[streetdsmpwr]

Which is better? They are about the same price and I can't decide which to go with. I'm planning to get an RRE Downpipe so fitment shouldn't be a problem. FYI, I have a stock T-25.

 

[burkgonzo]

I would say evo3, proven and durable.

 

[LiquidX]

Megan Racing: Tubular SS which looks nice. Welds are good and functions as it should. Light as well. 2.5" piping

Evo3: Cast iron/steel = HEAVY. Looks stock and will rust unless painted. Can be ported out to be true 3". Downpipe will need to be modified for the angle that is on the E3 housing.

I would just go with the Megan Racing if your o2 housing is bad.

 

[dsm-onster]

I don't think the evo3 o2 housing can be ported out to a full 3" and be remotely unlikely to crack a part. A 3" tubular is a clear upgrade. Mandrel bent and is usually welded to actually FIT the exhaust system. As the evo3 does not.

The 2g exhasut manifold is proven to the 9s, but that doesn't mean the FP race manifold isn't an upgrade

 

[LiquidX]

I swear I read that the E3 housing can be ported out to around 3" if I'm not mistaken. It has a lot more material than the 2g housing.

 

[Polyol]

I have a 97 gst & 97 gsx both with E3 o2 housings, and two different down pipes. I had no fitment problems. I think the E3 will last longer.

 

[streetdsmpwr]

I got 2 for the E3 and 1 for the MR. The RRE downpipe has a 2.5" inlet so I don't need a 3" O2 housing.

 

[Boosted98gsx]

the 2g exhasut manifold is proven to the 9s, but that doesn't mean the fp race manifold isn't an upgrade

all lies! I don't see any proof of this claim! You're full of it! Prove it or never log in again!

I wanna see dyno runs, back to back, flow benching test results, and everything else you've EVER tried to pin on me with anything I've ever engineered or promoted for another engineer.

 

[streetdsmpwr]

Well I got 3 replies so far and a conspiracy. Three isn't enough to make a decision, but I'm not sure if I even need to come to one. Will I see noticeable gains from using a new O2 housing with a T-25, a 2.5-3" downpipe, and a 3" cat-back? Also, how hard will it be to install said O2 housing on a 10 year old car without removing the turbo? I noticed a nasty heat shield in the way.

 

[Spoolin18]

E3 without a doubt, I had a megan 02. I just like the thought of going all mitsu. My buddy runs in the low 11's on a 2g mani, not sure how much more one could pull out of it. He runs a safc2 with a chip.

 

[dsm-onster]

all lies! I don't see any proof of this claim! You're full of it! Prove it or never log in again!

I wanna see dyno runs, back to back, flow benching test results, and everything else you've EVER tried to pin on me with anything I've ever engineered or promoted for another engineer.

FP race manifold was shown to save 2 tenths by a user here. . .

Bringing up your personal issues with your DV/DT fab manifold is silly at best. Why open your mouth and remove all doubt concerning the value of your input? Oh, and just to help seal your deep emotional wound, I only asked for back to back dyno results for one particular intake manifold that you constantly claim to others here as 'proven' and 'guaranteed to be better than anything on the market'. I never asked for worthless flow bench testing or anything else concerning that manifold. Promoting ANYTHING without SOME SORT of proof irritates more than just me as many have already discussed. But I suppose my responses hit more at home than others. You could take it constructively and put your car on the dyno comparing it with 1-2 other "top end" manifolds (not the magnus SMIM and FP race manifold to which you insist on comparing your manifold); but again you'd rather open your mouth and insert foot.

Back on topic. . .

Spoolin18, yes the evo3 o2 housing is MUCH more sleeper. And is still very much an upgrade to stock. . .

 

[fwdmaster]

Go with the megan o2,looks nicer, flows better and no porting is needed, if you get the evo 3 o2 housing you will need to port it to match up with the 2.5 downpipe

 

[pboglio]

Never ran either. But I'll toss my 2cents in. EVOIII housing for two reasons, contains exhaust heat far far better, can be ported an ass load bigger than 2.5" internally, which the Megan is maybe 2.38". If you had a regular downpipe, then I'd go Megan but otherwise EVOIII.

 

[streetdsmpwr]

Ok thanks guys for your input. Do you guys think I should even use an Evo III O2 housing with a stock T-25? I'm planning on getting an Apexi N1 cat-back and a RRE Downpipe with a high-flow cat/testpipe. Will I see any gains or should I wait for when I get a larger turbo?

 

[pboglio]

Go for it, you can optimize any turbo and it'll be there for when you upgrade later.

 

[ifeelubu]

I have an evo 3 ported to 3 inches and its powder coated as well and it works really well no cracks and paint is still in tact

 

[jm1080]

Is the megan racing o2/evo o2 upgrade over stock? They are both ported correct?

 

[streetdsmpwr]

They are both larger than stock and the Evo III housing can be ported even bigger.

 

[housegsx]

Skip the Evo3 o2. Then you have to get the downpipe angled for it. That's what I did and then I went to external on o2 and was annoyed that I had to find something to work with my evo3 style downpipe. I did end up finding one from Punishment Racing.

 

[miniturbo23]

I have the E3 and down pipe for the normal wont fit or you really have to put alot of stress on your flex pipe to fit it, megan if you want everything to just bolt up but E3 if you want full 3 inch and spend a bit more to make your down pipe fit making it full 3 inch.

2.5'-3'
or
straight 3'

 

[streetdsmpwr]

Well I am getting a RRE Downpipe and they make a version of theirs that fits the Evo III housing. I've been thinking about it and using everyone's feedback I think I'm gonna go with the Megan Racing. I don't want to have a downpipe that only fits one O2 housing, I'd rather have one that fits all but one O2 housing. I have a stock T-25 and if I upgrade I'll probably get a T-28, so I don't need a 3" O2 housing. Thanks for all of your input.

 

[907gs-t]

I'd get the Megan myself but that's me but I also run a Tubular S.S. O2 housing already & love it.

 

[romeen]

IMO, get the EVO O2 housing. It flows more than enough for the vast majority of us, has oem reliability and will allow you to use the factory lower heat shield which I feel is a very important consideration.

Here is a pic of my lightly ported EVO housing (ported to 2.5") vs an unported 2G housing.

 

[streetdsmpwr]

That looks pretty good but I think I'm gonna buy the MR because it fits better and I don't have to port it, its ready to go. If I had porting and fabrication tools at my disposal I'd probably get the E3.

 

[turbosax2]

and will allow you to use the factory lower heat shield which I feel is a very important consideration

Just an FYI, the stock heatshield fits with the MR o2 housing. Even though you lose 3 mounting bolts on the o2 housing it's plenty sturdy with just the 2 bolts on the turbine housing.