MAP Investment Cast Exhaust Manifold | 2008-2015 Mitsubishi Evo X (EVOX-ICEM)
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Cast Evo X Exhaust Manifold by MAPerformance
As an Evo X owner you could have purchased a base model Lancer, but you chose the turbocharged 291hp Evolution model instead. Some may argue that the AWD system was their main motiviation; While that may very well be true we're going to assume that, for the vast majority of you, the additional 139hp generated by the 4b11t powerplant sealed the deal. One dilemma...
Horsepower is addicting. And we've got a revolutionary new product that is sure to pique the interests of stock frame turbo owners everywhere. Drawing from our porting and tubular exhaust manifold design experience we've invested countless man hours into research and development of this manifold including 3D rendering, virtual flow testing, rapid prototyping, and ultimately flow bench testing to confirm that we have produced the best possible product for our customers. Yielding an astounding 22% average increase in exhaust flow over the OEM exhaust manifold and less imbalance this manifold will produce more power. Oh, by the way...
Your OEM exhaust manifold is most likely cracked, and it's only going to get worse. A bold statement indeed, but as one of the most popular resources for ported OEM exhaust manifolds we have been stock piling manifold cores for years. As of late it has become incredibly hard to find an OEM exhaust manifold without a crack in the collector. So what is the solution? The Investment Cast Stainless Steel Exhaust Manifold for Evo X by MAPerformance!
Features
- Meticulously optimized design yields a 22% average increase in exhaust flow over the OEM exhaust manifold with less imbalance between runners (check out our flow testing results above)
- Investment cast 310s stainless steel construction
- Factory heat shield provisions
- Includes (2) allen head bolts to ease installation of the manifold to cylinder head
Benefits
- Performance. Increased exhaust flow and reduced imbalance between the runners will improve spool characteristics and produce more power.
- Durability. Constructed from 310s stainless steel to withstand cracking in the most demanding high temperature environments.
- Stealth. Whether it is your own personal desire to keep your upgrades on the down low or motivation from an external source you can simply install the factory heat shield and onlookers will be none the wiser.
Dyno Testing Results
Test Vehicle: 2010 Mitsubishi EVO X
Our testing vehicle has a built bottom end with a stock sleeved 2.0L 4B11T. The Turbo has been upgraded to a MAP EF4, while the car itself has been tuned on E85
Stock manifold
- Dyno Room Temperature : 76 degrees
- Intake Air Temperature : 80.6 degrees at start, 84.2 degrees at end.
- Peak Torque Timing : 8 Degrees
- Peak HP Timing : 14 Degrees
- Full Boost Stock Manifold - 4937.5
MAP Investment Cast SS Manifold
- Dyno Room Temperature : 78 degrees
- Intake Air Temperature : 82.4 degrees at start, 84.2 degrees at end.
- Peak Torque Timing : 8 Degrees
- Peak HP Timing : 14 Degrees
- Full Boost MAP Manifold (Without any changes to try and improve spool time) - 5031.25
As you can see from the dyno graphs above, the results speak for themselves, demonstrating impressive gains of up to 30hp and 16 ft lbs of torque to the wheels! Peak gains were made with 2psi less boost! Do yourself a favor and consider this Investment Cast Evo 10 Exhaust Manifold!
Applications
- 2008-2015 Mitsubishi Lancer Evolution X
What's In The Box?
- Cast Exhaust Manifold
- Installation Hardware
Installation Instructions
Warranty
- MAPerformance One Year Warranty
Installation Instructions
This is an essential upgrade for your Evo if you still have the OEM manifold installed. A few notes from my installation that anyone looking to upgrade should take into consideration. This job is honestly a coin flip to determine how God awful it's going to be. during my own the nuts on the studs for the motor head actually came out pretty easy with a 14mm and a breaker bar, the turbo studs on the other hand are notorious for being almost impossible to get out at times. I've seen videos where people have gotten their turbo studs out with the double nut method but that, welding a nut onto it, and extractors all failed to get my studs out. We needed to drill the cores of the studs out completely and managed to unscrew one stud. the other had to pieced up and punched out with a hammer. something about how these studs is installed by Mitsubishi in our case made the threads on the studs burled. if you can wait on this job to have access to facilities with a lift or sufficient jacking to get the car into the air to remove the downpipe and just pull the turbo and the downpipe out may save you from a 3-day nightmare of drilling and breaking tools. Another note is if you are worried about extracting the head studs for the manifold you can get around having the swap the top corner studs by simply either reusing the 14mm nuts that came off the stud and using two lock ring washers that have a smaller outer diameter to keep a socket on the nut or by finding a M10-1.25 nut that's outer diameter is less than 14mm, personally couldn't find one but we went to ace hardware so maybe what I wanted was too specific. A design note on the MAP manifold is the two bolts that you install on the turbo side can be miserable to get on and off, ratchets are too large to get onto the bolt head and the box end of a normal wrench cannot get on the left nut until it's been threaded on a decent way in. Take your time on this removal and install, if you're unsure of your own skills and tools reach out for help from anyone you know who is mechanically inclined, or take it to a shop. Tools used- 14mm box ended wrench, 14mm ratcheting wrench, 14mm Short 3/8 socket, 14mm long 3/8 socket, 14 inch long 3/8 ratchet, 16 inch long breaker bar, 3/8 U-joint, 6 inch 3/8 extension, 4 4 inch 3/8 extension, 14mm offset box ended wrench. penetrating fluids used, 50/50 mix acetone and ATF (automatic transmission fluid), and PB blaster. All penetrating fluids were allowed more than 24 hours of time to penetrate and lubricate all studs and nuts removed. power tools utilized Baur 450ftlb electric impact gun, Ryobi 1000ftlb impact gun, High speed Dremel, Unknown brand Electric drill with carbide bits.
Got it delivered fast literally after 2 days of making the order. Really happy of the quality of the material and simplify love it.
Got it delivered the next day after I ordered it! Great quality! Perfect for ur daily driver and if ur trying to push some more power and it’s a great upgrade from ur stock header will last a while I definitely recommend for anyone with a evo x!
This manifold is amazing quality, super durable and very well made! The shipping was super fast, delivered in 4-5 days to me in Canada! 100% recommend. Installation is a bit tricky, but other than that it was overall an amazing product!
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