will the manifold work with the stock o2 housing?

 

Si

 

its identical to the stock manifold in fitment

 

yes i have the manifold lined up a little weird at first but it works good

 

it will work just fine

 

sure will. works even better with the megan 02 since you'll already be in there, whats another 80$ part?

 

i was thinking about purchasing the 02 also, any reason why to buy the o2? + or -

 

you shouldn't have any problem fitting them both, as one fits upstream of the turbo, and the other fits downstream...

You don't fix them to each other.

 

I have a fair bit of experience with the Megan header, in my opinion, it honestly does not belong on an Evo. The workmanship of the header is poor at best. The material is cheap and very prone to cracking. I have seen numerous Evos come though the shop with cracked leaky Megan headers.

I recently attempted to install a Megan header that a customer brought in and it would not fit. I measured the angle between the head flange and turbo flange of the stock mani and the Megan and there was more than three degrees difference. Laying the turbo side flange down on a surface plate, I measured the distance between the plate and the holes in the head flange. The stock mani's holes are nearly parallel with the plate, the Megan mani had a 1/4 inch difference from end to end.

Save your money for something of better quality that will actually last.

I am sure there will be replies from people that have Megan manifolds that fit and have not cracked yet..... I am not here to argue with them. I am just letting you know that there are lots of others that dont fit and are cracked.

 

^^^ I've heard this, but have not seen it happen. Not trying to argue with you or disagree with you. I just got the mani installed along with the megan O2 housing when I installed my FP Green. Mine was also coated inside and out by a different company to keep under hood heat down and prevent it from cracking from water hitting it when hot. No problems so far though.

As far as the O2 housing goes there are really only benefits. I believe it adds anywhere from 8-10hp and has quicker spool.

 

interesting, any alternative manifolds that dont have many issues?

 

I'm sure there are accounts of almost every tubular manifolds out there cracking, nature of the beast. 3 years on my megan with no problems. Get the 02! Its an easy +10hpgive or take and costs under 100$ you're not gonna find many mods that give you power and spool for that kind of money

 

No problems yet on my megan manifold(knock on wood). Id recommend the o2 for the same reasons everybody else has been saying.

 

FULL RACE

/thread

 

been running the megan manifold for about a year now.

Its heat wrapped. no problems.

I did 363whp/363tq with bpu, cams, megan header and o2 housing with 21psi. the tuner said there was alot left in it aswell.