After three years of hard work and testing, the Evolution Racewerks Competition Series Twin Oil Cooler System is finally here, and it’s a game changer for anyone who’s dealt with the frustrating limp mode in their 135i or 335i. If you’re like me, you know how crucial it is to keep those oil temps in check, especially when you’re pushing your car to the limit.

The stock setup comes with a pretty small oil cooler—just 8.75"x4.75"x1" (that’s 41 cubic inches for those who like the numbers). But the Competition Series? We’re talking about two massive coolers, each measuring 11"x8"x2" with a core size of 9"x8"x2". That gives you a whopping 144 cubic inches per cooler, which is 3.5 times bigger than the factory unit. Combined, that’s a staggering 288 cubic inches of cooling power—over 700% more than what you get from stock!

What does this mean in real-world terms? Well, during our testing, we’ve kept the Evolution Racewerks Time Attack 135i from hitting limp mode, even on scorching track days where temps soared above 110°F. We’ve pushed it hard, wide open throttle to 160+ mph, and the oil temps? Never exceeded 259°F. That’s solid performance, and we’ve got unbiased data to back it up.

Each of these twin coolers comes in its own robust enclosure, complete with louvers that ensure airflow while keeping debris at bay—no more worrying about rocks and tire shrapnel messing things up. Initially, we had a big open hole for airflow, but after a season of racing, we learned the hard way that protecting the coolers was just as important as cooling them. The new design keeps everything safe without compromising performance.

Features:

• Say goodbye to limp mode issues in N54/N55 engines caused by overheating oil!
• Two massive 9"x8"x2" oil coolers (11"x8"x2" with end tanks)—a serious upgrade from the factory single cooler.
• Combined twin coolers are over 700% larger than the stock setup!
• Total of 288 cubic inches of core compared to the factory’s 41 cubic inches.
• Choose between a sleek silver finish or Type III Hard Black Anodizing for that stealthy look.
• Smartly designed enclosure with venting louvers to protect against road debris without sacrificing airflow.
• High-quality Goodrich AN fittings in a sharp black anodize.
• Durable nylon braided oil lines that outperform stainless steel options.
• Optional carbon fiber or aluminum shrouding to optimize airflow and cooling efficiency.
• Comes with all the hardware you need for installation—no scavenging for bolts!
• Tested under extreme racing conditions on the Evolution Racewerks 135i.
• Limited Lifetime Warranty for peace of mind.

Fitment:

• BMW 335i 2008-2011

Note:

• Images are for representation only. Actual product may vary.

For those who own a BMW 135i from 2008-2013 or a 335i from 2008-2011, this upgrade is a no-brainer. If you're serious about performance and want to keep your engine running cool, the Evolution Racewerks Competition Series Twin Oil Cooler System has got your back.