I have the Megan exhaust manifold and o2 housing, they came with my car when i bought it, kinda wish i had a ported stock manifold with a nice heatsheild instead cause the tubular ones tend to crack easier (not that the cast iron manifold wouldnt crack). As for the downpipe...... I recently bought the megan downpipe and resonated test pipe. Cant complain, the down pipe and test pipe are great quality and fit perfectly. I would stay away from the exhaust manifold tho.

 

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Thinking about this for 5 yrs. https://www.evolutionm.net/forums/ev...urbo-back.html

 

Like everyone else said, the manifold is probably a no go,
Heres a link to the map site for a ported stocker, prpbably pne of the better options out

http://www.maperformance.com/maperfo...p-pem-evo.html

 

I talked to buschur racing about porting and they are fairly cheap in price as long as you have your own core

 

I run there downpipe and test pipe no problems. For the money you cant beat them, I cant see anyone making something better for $500 or $180

 

i hear megan products are good for the price, your not spending an arm and a leg, but your still getting decent quality.

 

I have a built 2.0 with Wiseco Pistons Manley H beams built head with 280/280 BC Cams and my Megan Downpipe and Testpipe are holding up great its a brand my Builder recommends to people on a budget and will tell ya for the most part pipe is pipe

 

Any chance that if I didn't have the doughnut gasket in between the O2 housing and the downpipe (bought my car used recently, previous owner threw stock exhaust back on didn't put the gasket in) that it might effect the temperature in the engine bay around the radiator?

I've been smelling coolant when the car is idling. I suspect I need a new radiator cap, I'm wondering if the two things together are contributing to me boiling off the coolant. Idk. It's probably not possible but I'd be curious as to what you thought.