High_PSI

iTrader: (50)

I'm selling a true 3.0" 02 eliminator downpipe and dump. I run one it rules.

evotuner04

iTrader: (45)

very tempted to get the MAP version

High_PSI

iTrader: (50)

Map is VERY good too, however it is only 2.5 inches off the turbo. After that it still has to neck down to the stock doughnut gasket which is even smaller then 2.5 inches and THEN you have to marry it to the stock sized downpipe which eventually necks out to 3.0's.

Or you can get my pipe which is 3.0 inches off the turbo, very large dump, is bunged for a wideband.

Again I run one it rules, I just have two now was gona use it for another project which never materialized.. Brand new never used.

Mistaken

iTrader: (20)

I love my jmf dump. I got the newest version as its one piece for the tube and no welds. It sounds great and I gained 16whp from it at its highest point. It's loud as hell but when I'm in wot I don't care that it's super loud. Scared a few people.

I've never had an issue with it.

SlavaGC8

iTrader: (1)

^ what o2 you had before and those gains are just from dump?

PatricksEvilEvo

iTrader: (12)

So it sounds to me like if your running less than 25psi the o2 dump isn't the best option? I've been going back and fourth with a Megan 02 housing or going all out with a dump but I want boost control, I run 21psi daily and only turn it up on rare occasions... Someone clear this up, do you have control with the dump or is it a minimum of 25 or so psi constantly?

Mistaken

iTrader: (20)

That's just from the dump. I was on the stock o2 housing before.

mikeywick821

iTrader: (1)

so the best option for a IX turbo is a o2 housing ?
and once you go with a bigger turbo, thats when a dump is a better option?

thanks!

High_PSI

iTrader: (50)

The best exhaust after the turbo is NO exhaust. After that you are hurting performance. However you may deal with a spike issue with a stock turbo. I run a FP RED so the dump only helps spool and holding boost. A stock IX turbo would ROCKET to attention with a full dump so tuning MAY be an issue if it spikes too high.

EvoRob1986

Has anyone used the MAP 02 Dump with stock turbo on an Evo 8? What are the results?

awdordie

iTrader: (1)

Never heard of people having creep with a dump. I thought thats what dumps were made forwas to eliminate creep issues.Im running one and love Iit... I have more control over boost now and it holds rock steady where ever I set it at.

supersnow

iTrader: (6)

my boost control with map dump DP 3d it's perfect and it allows my hta71 and R2 cams combo to keep power up to 7800

SSMCL9

iTrader: (7)

i have the muse dump, and the dump pipe has contact with the rad it will need some mod to clear it. I have a works understray so the exhaust gas from the dump get bounce back. otherwise good upgrade.

on stock 9 turbo crusing is not loud at all, only loud wot and cold idle.

e_kobz

iTrader: (36)

Old topic buddy I'm sure google can find this answer for you. But since we're here...the 02 dump will allow you to make more peak whp and it will also free up spool by eliminating back pressure which will allow your turbo to make more torque. The nice thing about the MAP 02 eliminator downpipe is its one piece, not two. So it'll be a full 3 inch pipe, not a 2.5in to 3in. There will also be one less potential exhaust leak.

No boost creep here either. I found it easier to control boost with the 02 dump. Holds boost better as well.

My boost control is perfect as well, no issues here.

Really?! I also run the Muse 02 dump on my Evo IX with the stock radiator and there's about an inch of gap between the dump tube and radiator

6spdlegend

iTrader: (2)

bump- would love to hear more from those who switched over to an o2 dumper. i currently have the MAP recirculating downpipe (dumps back into the downpipe itself) but i'm thinking of doing an o2 dump- the question is how much whp can i expect once tuned? I'd think 10whp or so (currently at 420whp dynojet).