usdm is plastic and JDM is metal
Which is better


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2005 MR

 

Jdm

 

because it being metal?

 

All 2005 Evo's use the same blow off valve. It is not specific to the "MR Edition."

 

Why MR BOV has a stiffer/hard spring than the stock EVO 7/8 bov?
Is the turbochager, wastegate, ecu, turbo pressure different?

 

ok so it would be a good idea, to switch my plastic bov for a metal JDM bov

 

new USDM BOV is plastic. Get the JDM if you want the metal one. $120 at gruppe-s./

 

I already ordered mine, it will be in my hands in 15days more or less. I'm a little worried because I read some evo owners having near stalls with the MR valve. Anyway I will try.

 

stalling even on recirculating? shouldn't be a problem

 

BTW, I recommend using high quality clamps on the BOV. Like T-bolt and constant torque clamps.

 

i had this problem with the car. It could have also been the rubber on my intake was off the clamp. I got the car tuned, fixed the rubber and clamp. Events that would stall the car in the past havaent. The car does dip to 700 rpm's here and there, but thats no big deal.

 

Can someone confirm if O5s are metal or plastic?

Alex

 

'05's are all plastic. I have an MR valve with no issues at all.

 

if your goint to buy the jdm one I would just get the forge bov instead, it will hold boost better anyways (dyno proven) ask wizardofevo for details.

 

i have the same issues, it dips from time to time

no engine is the same so people should really stop assuming that everything will work the same with every part.