What are the 2 threaded bolts that look like O2 bungs setting on the flange whats the use? HELP!!!!!!!!!!!!!!

 

nothing.just tighten and leave it alone

 

I noticed that the megan logo they welded is on the bottom..... Instead of the top

 

Bump Ne1?

 

Thanks


You use stock exhaust gaskets not the ones supplied. They are made out of recycled spam cans. Glad they are bent, as it should be a reminder not to use them.

The bolts are EGR antilag ports for JDM Evo engines. Not used on the Evo 8-9 USDM.

The manifolds typically only crack when used with a tubular O2 housing AND when they are HEAT WRAPPED.

 

i think if you heat it up and cool it down fast they tend to crack

 

DONT HEAT WRAP IT and also you will have better luck with it if you have an aftermarket motormount if you have a aftermarket 02 housing. The stock 02 housing is bolted on so it helps support the manifold, aftermarket ones arent and there for offer NO support. Then when the motor twists under load with the stock rubber POS mount, it cracks. With aftermarket mounts, the engine doesnt twist as much and then it doesnt put as much stress on the manifold to crack it.

 

I'm Picking one of these up as well for my turbo project. Thanks for all the info Celica2evo

 

The Megan unit does have a one year warranty.

 

seems like everyone says that untill they blow a hole in the block. but its good up untill then

 

I had my first one heat wrapped and cracked in 5 places.. The second and third one were not and they still cracked within 4-5 months.. I went back to the stocker..I did have an o2 housing and i did have a Forge motor mount too... I loved the sound of the exhaust with the manifold on, sounded like a bike lol!