Custom O2 elim dp build.

[JeanDSM]

I am going to build a 3" custom o2 eliminator downpipe. I am going to instal it to my stock t25 later on the summer i will have an EVO III 16G. I came to the idea to build a downpipe just like my friends wrx downpipe. the exit of the turbo exhaust and the internal w/g exhaust are in a big 4" one pipe only and the rest of the downpipe is 3".

Ill weld a 3" pipe to the turbo exhaust and custom cut another 3" pipe or 2.5" forn the wastegate side and fit it to the turbo exhaust one and make it one piece.

Ever seen a Turbo XS WRX 4" inlet downpipe?
thats what i want to do. Will it creep?
or do i have to do it just like the others.

 

[JeanDSM]

40 views and no feedback yet?
or is it that noone had ever thought about it and its a great idea?

 

[Stapl3]

Pointless.

 

[oldman]

thats what i want to do. Will it creep?

Most likely yes.

 

[JeanDSM]

even if its a stupid idea please reply

 

[skills]

im assuming that you mean a bellmouth design. from my experience building my wrx (and then having to sell it). on a wrx compared to a dsm are a little different. the main poit being the reason the wrx community upgrades to the bellmouth or divorced style dp is because the factory downpipe has a blocking plate on teh wastegate and then bounces off the plate then back around the only exit it has (the downpipe tube). now the dsm's are a little different seeing as how the o2 housing is directly after the turbo which has a seperate runner for the wastegate then dumps into the down pipe. you may benifit from the lack of restriction from not having the 2 seperate tubes but, in the end its gonna be alot of work and your gains will be marginal over the basic o2 dump tube. just going with a basic setup of 1.5" o2 external dump and 2.5" (larger if you wish) downpipe tube will net you damn good results.

good luck though with your plan.

ryan