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    • Turner Motorsport releases oil cooler upgrade kit for BMW 335i vehicles with the N54 twin turbo 6 cylinder - $899

      There are a lot of N54 guys that like to track their car who will likely be interested in this oil cooler upgrade from Turner Motorsport. Turner states this upgrade is just for 335i's with the N54 as it is listed as fitting the 2006-2010 E90, E92, and E93 335i including the Xi. Pricing is $899.00 for cars that have the factory oil cooler and a retrofit kit can be added for an additional $530 for cars without the factory oil cooler. Full details listed below.






      The N54 engine equipped E9X 335i is reknowned for its excellent performance and the ability to custom tune for more horsepower. Unfortunately, it is also known for oil cooling deficiencies that can reduce horsepower output and potentially compromise engine longevity, especially when driven enthusiastically or when boost is increased. To help maximize the power of your BMW, this kit adds a second oil cooler behind the kidney grills in addition to the factory oil cooler. This not only increases the cooling capacity, but more than DOUBLES it! Our kit provides the factory oil cooler with much more airflow then what is available in the fender wells.

      What is included?

      Billet aluminum oil filter housing adapter - CNC'd, anodized black
      Setrab Oil Cooler Core simply the best brand in oil cooler cores available. Most of the competition use far inferior cores, resulting in higher temperatures and sometimes catastrophic failure. One of our customers previously had a competing oil cooler literally explode on the Nurburgring, splashing oil on the tires and track at over 150mph!
      Anodized aluminum mounting brackets + all necessary hardware
      Oil lines made from lightweight stainless braided hose, with black/nickel colored swivel fittings.
      Retrofit kit available for those who do not currently have the factory oil cooler. This includes all the OEM parts needed.


      What makes this kit superior to the rest?

      Uses a well known, highly respected, quality Setrab core
      Custom made and professionally assembled lightweight oil lines
      Retains factory oil cooler.
      Oil cooler surface area is not just increased, but more than doubled.
      Easy installation
      No hacking or cutting of brake ducts.
      Ability to add our upgrade kit that will allow you to run (2) Setrab cores for maximum cooling capacity!

      Only for cars with factory oil cooler. Cars without factory oil cooler must purchase retrofit kit.

      This item fits the following BMWs:
      2006-2010 E90 BMW 335i 335xi 335i xDrive - Sedan
      2007-2010 E92 BMW 335i 335is 335xi 335i xDrive - Coupe
      2007-2010 E93 BMW 335i - Convertible
      This article was originally published in forum thread: Turner Motorsport releases oil cooler upgrade kit for BMW 335i vehicles with the N54 twin turbo 6 cylinder - $899 started by Sticky View original post
      Comments 38 Comments
      1. bobS's Avatar
        bobS -
        I added it for my street use because I didn't have a stock OC, I was one of the early 335's that didn't come with a OC :-)
      1. Autobahn335i's Avatar
        Autobahn335i -
        Click here to enlarge Originally Posted by RTA Click here to enlarge
        Thats the thing I use it for road track purposes... it's quite a different situation... lots more breaking and slow parts just after high speed parts of the track.. it's a killer.. driving skills also impact... but this cooler is just not sufficient to keep oil temp in control...
        And for the street not really neccesairy to my opion....
        +1 this cooler is ok for spirited street driving, but on a road track it's just not enough. So if you plan to trsck your car, you're better off getting a proper setup from STETT or from Evolution Racewerks (my choice). Replacing the small stock oilcooler with a lager and better core is a better option than this AR Design OC.
      1. DavidV's Avatar
        DavidV -
        Click here to enlarge Originally Posted by dzenno Click here to enlarge
        oh i just noticed that Click here to enlarge i "wonder" who it was lol its ok, doesn't matter..
        Sorry man, I probably misclicked on my phone while scrolling. Just noticed I negged you in my replist, and didn't understand eather. I will make it up to you. Only need to spread a little rep first.
      1. mr_pharmd's Avatar
        mr_pharmd -
        doesnt the ar oc connect to the oem oil cooler so wouldnt itstill be better over stock??
      1. Sticky's Avatar
        Sticky -
        Click here to enlarge Originally Posted by mr_pharmd Click here to enlarge
        doesnt the ar oc connect to the oem oil cooler so wouldnt itstill be better over stock??
        Not sure...
      1. Alpina_B3_Lux's Avatar
        Alpina_B3_Lux -
        Click here to enlarge Originally Posted by mr_pharmd Click here to enlarge
        doesnt the ar oc connect to the oem oil cooler so wouldn't it still be better over stock??
        All oil coolers connect to the oil circuit of the car and therefor to the original oil cooler (if there is one). Therefor also the AR Design is connected to the stock oil cooler.

        Of course the AR Design oil cooler also contributes to lower oil temperatures. However, depending on your level of engine tuning and driving habits (i.e. race track or street), it may not be sufficient.

        Alpina_B3_Lux
      1. b1gmac88's Avatar
        b1gmac88 -
        If your car doesn't come with an Oil cooler from the factory, Ar also sells you the new Oil Filter housing with the extension to add inlet and outlet lines. Its around 500$ additional.

        Ive installed a few of these, starting with BobS and they are a nice kit. Pretty pricey for what it is, but the custom made oil line adapter (black box with AR on it) is a nice piece that took some time making.
      1. Karura's Avatar
        Karura -
        Reviving the thread, I'm interested to know if the 335is (which I believe comes with the BMW PPK, which has an upgraded watercooler, not oil cooler) requires an oil cooler upgrade for street/road course dual duty cars, if it's bolt-on, and what choices I have.

        Normally oil coolers aren't such bolt-on kits right?
      1. 135Hoser's Avatar
        135Hoser -
        Take a look at your oil filter housing. It'll tell you right away if you have an oil cooler or not.

        I think after 08 or 09, all cars shipping with the n54 engine had an oil cooler.

        On most cars fitting an oil cooler isn't exactly a bolt on affair. With this setup you are replacing the factory lines, the factory adapter plate, and the factory heat exchanger core with aftermarket parts.

        I don't know if this stett one lives in the same spot as the factory oil cooler (passenger fender iirc) or if they relocate it to infront of the rad.

        Some of these upgraded aftermarket oil coolers require some 'adjustment' for them to fit.
      1. stangorang's Avatar
        stangorang -
        So overpriced. BMS or PTF needs to come up with a reasonably priced option. Combined with the RB plate you should be able to sell one in the $400-500 range. $900 is just nuts for what it is, not to mention the AR one is crap when exposed to track duty.
      1. Flinchy's Avatar
        Flinchy -
        Click here to enlarge Originally Posted by stangorang Click here to enlarge
        So overpriced. BMS or PTF needs to come up with a reasonably priced option. Combined with the RB plate you should be able to sell one in the $400-500 range. $900 is just nuts for what it is, not to mention the AR one is crap when exposed to track duty.
        +1

        i'd like a well priced twin cooler kit (not $1500) Click here to enlarge (nice decent sized earls or setrab, decent mounting hardware it's for an oil cooler, not an artwork)
      1. ncat10's Avatar
        ncat10 -
        I have same oil cooler.
        well cool, but I'll put it on the gearbox. Himself will do custom cooler under stock replacement. AR Design cooler have 142inch core capacity, my cooler have 289inch core capacity. here are the necessary parts:
        SETRAB OIL COOLER ADAPTER- P/N M22AN10 - 2
        BMW E36 Euro, E82, E9X 135/335, E46 M3 Air Oil Cooler adapter - 1
        AN -10 (10AN AN10) STRAIGHT Swivel Seal BLACK Hose Fitting (Earls Aeroquip Type) - 4
        AN -10 AN10 ( -10 JIC ) Nylon Braided Stealth Black Hose 6m (Pro Lite Type) 1
        Setrab 25-Row Series 9 310mm Oil Cooler, M22 Female O-ring Ports - 1
        Attachment 31486Attachment 31487Attachment 31488Attachment 31489Attachment 31490
      1. r45t4335i's Avatar
        r45t4335i -
        The mounting bracket is the biggest issue for these retrofits. Sourcing the lines, fittings and core is the easy part.
      1. Doyle's Avatar
        Doyle -
        Click here to enlarge Originally Posted by r45t4335i Click here to enlarge
        The mounting bracket is the biggest issue for these retrofits. Sourcing the lines, fittings and core is the easy part.
        +1

        It is a piece of bent metal. Low hanging fruit for whichever vendor builds it first. I'd pay $100 for it.
      1. Flinchy's Avatar
        Flinchy -
        Click here to enlarge Originally Posted by r45t4335i Click here to enlarge
        The mounting bracket is the biggest issue for these retrofits. Sourcing the lines, fittings and core is the easy part.
        that's always been my only thought when wanting to go something non-OTS.... lack of welding/fab skills hah

        Click here to enlarge Originally Posted by Doyle Click here to enlarge
        +1

        It is a piece of bent metal. Low hanging fruit for whichever vendor builds it first. I'd pay $100 for it.
        put me down on preorder list haha

        but seriously. i'll take a L+R oil cooler mounting bracket setup.

        i'd take the brackets for a front mount oil cooler+intercooler combo too if anyone was willing to make them haha
      1. Flinchy's Avatar
        Flinchy -
        Click here to enlarge Originally Posted by ncat10 Click here to enlarge
        I here are the necessary parts:
        SETRAB OIL COOLER ADAPTER- P/N M22AN10 - 2
        BMW E36 Euro, E82, E9X 135/335, E46 M3 Air Oil Cooler adapter - 1
        AN -10 (10AN AN10) STRAIGHT Swivel Seal BLACK Hose Fitting (Earls Aeroquip Type) - 4
        AN -10 AN10 ( -10 JIC ) Nylon Braided Stealth Black Hose 6m (Pro Lite Type) 1
        Setrab 25-Row Series 9 310mm Oil Cooler, M22 Female O-ring Ports - 1
        though on the other hand:


        $9.75 SETRAB OIL COOLER ADAPTER- P/N M22AN10 - 2
        $75 BMW E36 Euro, E82, E9X 135/335, E46 M3 Air Oil Cooler adapter - 1
        $14 AN -10 (10AN AN10) STRAIGHT Swivel Seal BLACK Hose Fitting (Earls Aeroquip Type) - 4
        $140 AN -10 AN10 ( -10 JIC ) Nylon Braided Stealth Black Hose 6m (Pro Lite Type) 1
        $259.50 Setrab 25-Row Series 9 310mm Oil Cooler, M22 Female O-ring Ports - 1


        so $549.50 + $100 (say) for some brackets and we're on $650

        and that's not even counting the kits that include the thermo housing blanking plate + new lower temp thermostat...

        or the fact you don't have to spend ages dicking around with it

        and suddenly it's not so unreasonable to pay a bit more?

        though if you were really keen, i can't see why you couldn't get 2 small bits of alu or SS for $5-$10, mark it out, crack out the angle grinder, drill a handful of holes, and get the brackets welded together just for you... <$30 even potentially (assuming you have the basic needed tools)

        and we're back to being an excellent idea haha
      1. ncat10's Avatar
        ncat10 -
        Click here to enlarge Originally Posted by Flinchy Click here to enlarge
        though on the other hand:


        $9.75 SETRAB OIL COOLER ADAPTER- P/N M22AN10 - 2
        $75 BMW E36 Euro, E82, E9X 135/335, E46 M3 Air Oil Cooler adapter - 1
        $14 AN -10 (10AN AN10) STRAIGHT Swivel Seal BLACK Hose Fitting (Earls Aeroquip Type) - 4
        $140 AN -10 AN10 ( -10 JIC ) Nylon Braided Stealth Black Hose 6m (Pro Lite Type) 1
        $259.50 Setrab 25-Row Series 9 310mm Oil Cooler, M22 Female O-ring Ports - 1


        so $549.50 + $100 (say) for some brackets and we're on $650

        and that's not even counting the kits that include the thermo housing blanking plate + new lower temp thermostat...

        or the fact you don't have to spend ages dicking around with it

        and suddenly it's not so unreasonable to pay a bit more?

        though if you were really keen, i can't see why you couldn't get 2 small bits of alu or SS for $5-$10, mark it out, crack out the angle grinder, drill a handful of holes, and get the brackets welded together just for you... <$30 even potentially (assuming you have the basic needed tools)

        and we're back to being an excellent idea haha
        In my kit you don't need remove oil thermostat ) I use "BMW E36 Euro, E82, E9X 135/335, E46 M3 Air Oil Cooler adapter" for this.
        About brackets I can do it myself.
        I wrote above ar-disign to small.
      1. Flinchy's Avatar
        Flinchy -
        Click here to enlarge Originally Posted by ncat10 Click here to enlarge
        In my kit you don't need remove oil thermostat ) I use "BMW E36 Euro, E82, E9X 135/335, E46 M3 Air Oil Cooler adapter" for this.
        About brackets I can do it myself.
        I wrote above ar-disign to small.
        i meant if you wanted to go a low temperature thermostat. Then you need to remove OEM one