You have stumbled upon the first of many upcoming product offerings produced by MAPerformance under the MAP brand name. Our goal is to offer the highest quality products available at a price that anyone can afford, and our very first product has done just that! This integrated O2 housing downpipe, or O2 eliminator as they are often referred to, has proven to add 16whp on a stock turbo, stock air intake Evolution at factory boost levels! It is also important to note that these gains were realized on a car that had already upgraded the catback exhaust system and replaced the catalytic converter, arguably the biggest restriction from the factory, with a test pipe! Even larger gains are inevitable on applications with further modifications or increased boost levels!

Features / Benefits

- Integrated O2 sensor housing reduces exhaust restrictions.
- Mandrel bent tubing throughout optimizes exhaust flow.
- Stainless steel flex section reduces stress from engine movement increasing longevity.
- Optimal wastegate dump location helps eliminate boost creep.
- Aluminized mild steel tubing reduces the likelihood of cracking.
- Black high temperature ceramic coating improves corrosion resistance and reduces under hood temperatures.
- Fits all Evolution 8 & 9 including those equipped with an Active Center Differential (ACD).
- Includes all necessary gaskets and hardware including spacers to clear the factory crossmember.
- 100% Made in the USA.


Options

External wastegate dump: This is the absolute best option in regards to performance as the wastegate gases never reenter the exhaust system. Please note that under full boost the exhaust will be considerably louder. This option is intended for off road use only as venting exhaust gases prior to a catalytic converter is illegal in most states.

Recirculated wastegate dump: Standard O2 housing configurations recirculate the wastegate gases just inches away from the turbine outlet resulting in turbulence and decreased performance. Our unit recirculates the wastegate gases as far away from the turbine outlet as possible to provide you with the best possible performance without the additional noise from the external dump.

Future Development

Is bigger always better?: Our initial design for this product utilized full 3" tubing which to our surprise made less power than this 2.5" to 3" transition on a stock Evo 9 turbocharger (I guess bigger isn't always beter!). We still feel, however, that the full 3" design has potential on applications with an upgraded turbocharger so check back often for further testing and product updates!

Stainless Steel: Sure stainless steel is naturally corrosion resistant and has the "bling" factor that some enthusiasts may be after, but is there really a difference in performance and longevity? In reality stainless steel is more likely to suffer from stress fatigue or cracking in comparison to aluminized mild steel and costs almost twice as much! Properly apply a high temperature ceramic coating to aluminized mild steel like we have done here and corrosion resistance is no longer a factor! Regardless we are still considering a run of these units in stainless steel for those that must have it, if this interests you please contact us so we can get the ball rolling!



Important Note

The black ceramic coating utilized on this product requires curing, which will take place during the first few heat cycles once installed, to ensure chemical and corrosion resistance. Please handle the product with care prior to and during installation.

Warranty Information

At Modern Automotive Performance we strive to offer only the highest quality products and stand behind our work. All MAP brand products will include a one year warranty from the date of purchase. In the event of a failure from a manufacturing defect we will either repair or replace the product at no cost.

 

very nice! how hard is the install though??

 

Great company to work with! I saw some of the prototype models and they were all very nice; I'm excited to see the production piece.

 

looks like the install will be a pain

 

how i wonder how this one fits comparing to other o2 dumps out there

 

To be completely honest the install is no tougher than a standard downpipe and O2 housing configuration in regards to access to bolt locations, and if you want to get down to the nitty gritty you have two less bolts to re-install

I will try and get some pics up of a recirculated unit installed shortly. If anyone wants to pick one up for themselves and report back here with your thoughts I'm more than willing to hook some people up on these initial pieces, let me know!

 

Great idea!
Incorporate everything into one piece, so we don't have to purchase 3 seperate parts!

 

Exactly! Should be a good seller with the price and the quality, not to mention the power gains!

 

how much shipped to 46526 if i do a write up on it

 

wait...this also eliminates the cat??

 

that is a pretty bad*ss piece you guys have there...looks great...i was gonna ask how much of a pain in the butt it is to install but you are right...shouldn't be too bad and 2 less bolts...so there are no dyno test results yet??

 

Very cool piece. I'm looking forward to seeing pictures of the recirculating version. I've always wanted something like that; it seems to me that the direct-replacement O2 housings just don't go far enough.

I'm a little concerned about the possibility of different thermal expansion between the turbine outlet pipe and the wastegate outlet pipe on a recirculating version, and it makes me wonder if a slip fit section like AMS uses on their recirculating turbo kits would be a good idea.

I worry about the difficulty of the install, too: I know you've said it's easy, but I've installed an O2 housing, and it's much harder than installing a downpipe. Way too many projects begin with "remove the undertray and downpipe to get clearance", so it's not just a one-time install.

Have you considered a two-piece version, with a flange just before or after the downpipe turns to run parallel to the ground? That'd make removing the horizontal portion of the downpipe even easier than stock, and it might make it easier to incorporate the wastegate slip fitting that I mentioned above, though I'm sure it'd bump the cost up.

I'm sorry, this is all coming out sounding negative. I really like the look of this product. I'm not willing to put up with a wastegate dump and I've never been happy with the sacrifices that replacement O2 housings have to make to mate up to stock and stock-replacement downpipes. I like your ceramic-coated mild steel approach as well; I agree that it should provide all the protection from corrosion that you could ever need while offering less thermal expansion.

 

I don't believe it does, but that is a great idea that hopefully they can make an option!

 

looks to me like an easier install considering all the space around the o2 bolts compared to the stock and aftermarket stuff. im saving up for a turbo kit but ive always wanted the wastegate dump. how does this fit with the transfercase, my current dp is up against it and i cant stand it.

 

Recirculated image and dyno chart added!