Alright guys I'm in the market for an o2 dump and can't decide which one to get now. Oringinally I was gnna go wtb EPM's o2 dump but then saw QTP has one. They both look like very nice pieces. Only thing I noticed that was different was the opening EPM has 2 round holes opposed to qtps stock like opening. Which one would you guys reccomend getting. The QTP is cheaper but From what I can see EPM has dominating the market for o2 dumps. So is the EPM worth the extra 40-50 bucks. Also are these the only companys that make this product I was told there was one more company but his information could be wrong. And yes I have searched but I my found 1 thread on the qtp so I'd apprecate some help. Thanks

 

im in the same boat. would like to know as well.

 

i heard QTP had a bigger piping so it could flow better but i am not sure

 

It looks like QTP's piece does have a bigger opening and bigger piping, but the gains between the two are probably minimal...

 

I love my EPM o2 dump, but I don't think you can go wrong with either. If you want to see how it sounds, click the link on my sig, but to be honest, it really doesn't do it any justice. You won't regret it!

 

Jm fab has one also. i have the evo power mods. the epm dump tube is slightly bigger than the jmf i think im gonna have to switch out to go with the jmf b.c of my thicker rad. i had to cut the dump tube on my epm to let the rad slide in place. You wont go wrong with the EPM tho. its a great product. sounds great and actually helps spool of the turbo not just a sound factor. Havent researched and on the QTp so couldnt help ya there.

 

I should be picking my JM Fabrication Dump today, il take picks for ya if you like. I def reccomend them for any part you need...

 

Are you running stock rad? also what Licp?

 

I went with the EPM O2 because there is actual working data out there on gains made - that was even before I posted my gains (25whp/42 wtq over stock housing).

I have not seen data from other brands yet.

 

thanks for the info. The opening is what is my concern as mentioned above. I dont want to be restricting the airflow due to the small holes on the EPM and JMF. I mean all three are awesome looking pieces. I like the EPM due to them selling two different ones to fit certain LICP. In the end it seems like its gonna be up to much money i wanna spend cuz they all look like they are going to do the same thing

 

QTP has the stock port matched outlet design and a velocity design.

 

I purchased the QTP product and it cost $300 in labor to modify it to fit b/c it was hitting the radiator. It sounds beastly though i must admit especially on the FP RED.

 

I have seen comparison pictures of the epm and qtp dump tubes. The flange on the qtp looks like it matches up to the turbo whereas the epm flange looks to be two holes that are not matched. I can guess that it keeps costs down to mass manufacture the epm flange. Is it really $50 more than the qtp?

 

Thnx for the interest in our EPM O2 Dump Housing.

We did extensive research into this Modification part. With 3 months worth of testing and 4 prototypes later we finally settled on our current production models. We at first; thought that just by creating an atmospheric dump, that would create power.

We were wrong.

Where the Real power is created is Not the wastegate side but on the Turbine side. Yes, you do get great benefits from running an external dump but it will not produce the big power numbers. There is no way a larger wastegate opening can create more power. The wastegate is only open 10% of the time, and the flow is minimal compared to the Turbine tube. We went from a 2.5 inch Turbine tube on our first prototype(Which is what all of our competitors use) to a full 3 inch Turbine tube. Our first 2.5 inch turbine tube prototype lost 3 whp.

Yes; we lost power initially with our first 2.5 inch prototype,...again all of our competitors use a 2.5 inch Turbine Tube.

EPM uses a 3 inch Turbine Tube .........Every competitor uses a 2.5 inch turbine tube with a minimal radius....

We are the only O2 Dump Housing producer that uses a 3 inch Turbine Tube. And EPM is also the Only manufacturer that uses the unique radius tube that makes power.

Our 3 inch Turbine Tube is very unique in the radius and the design. We sourced a very unique radius 3 inch tube from a leading aircraft manufacturer. You will not see this type of tube on any cheap product out there. We are unmatched in this area compared to any other company out there. Our Turbine Tube has 45% more flow volume than a Megan Racing O2 Housing.........which I might add is eerrily similar to all of our competitors Turbine Tube....... We didn't copy anyone's design we started from scratch with our own in-house design.

Take a look at turbocharged engines running external wastegates; do you see a motocross muffler on their Wastegates?

No you don't, you see a 2 inch tube just like ours. We have done the research, we have publicly show to the world what we have come up with in our data. Other companies can Claim this or that but we are the Only company to show proof. If you want anywhere from 15-25 Proven whp from an O2 Dump Housing then you have only one place to go; and that's with EvoPowerMods.

Just by Bolting our EPM O2 Dump on a recent test vehicle...with NO Tuning we got 19 WHP and 19 ft/lb of torque...just by bolting the EPM O2 Dump on...no Tuning....this Evo MR has the minimal bolt ons that most Evos run today. All are great supporting mods but nothing very serious.........19WHP and 19 ft/lb Torque...just by bolting the EPM O2 Dump on...we have yet to Tune this vehicle for our part...expect larger numbers....I think everyone can use 20+ whp.....and 20+ ft/lb of Torque.....

If you want a part that is cheaper and is unproven , if you want to be guinea pig and do company "A's" testing for them then search out our competitors. If you want try try-out a prototype then go to company "A". If you want to highly modify your hard earned money's part you just bought then go with company "A".

If you want a part that is 100% made in the USA from skilled craftsmen; 100%; TIG welded with precision; 100% made in the USA Laser Cut flanges; Proven power producer, then let me know as I would be honored to make one of our EPM O2 Dump Housing for your Evo.

We were the first O2 Dump Producer out there, and I feel we are the best. We take pride in our work and customer service. We stand behind our product, if for some reason you run into an issue we work with you until you are 100% satisfied.

Take a look at out thread --->https://www.evolutionm.net/forums/sh...d.php?t=342112

We have extensive customer reports of satisfaction, we have numerous leaders in the Evo community endorsing our product...IndyEvo, Mike@AWD, etc....We want to be in the Evo modification parts business for a long time. We have worked tirelessly to produce a quality part, and honestly a satisfied customer base. We strive for innovation and to get absolutely 100% of the HP gains that are possible out of any part that we produce.


If there are any other questions/concerns feel free to let me know....

Now go Dump On somebody.....

 

There are many company out there makes exhaust, o2 housing, licp, intercooler, why can't another company make o2 dump for evo for end users to have more choices?? just b/c you have a competition and it's $50 cheaper and you have to bash on their new products. There are real people with real gain out there with QTP o2 dump. How do you know QTP O2 dump didn't go thru testing? Maybe you should look into lowering your price especially in a economy like this....