Turbo-Side or "Hot-Side" Intakes Explained

It’s time to revisit something we have already covered with you in Keys to Performance. With the release of our brand-new Turbo Side Intakes for the N54, we thought it would be an excellent chance to talk about our new design and offer something of a refresher course on performance intakes for your BMW. Specifically, the N54. If you don’t have a BMW with an N54, don’t go anywhere! What performance intakes do for you and your BMW is once again our topic of discussion, so this applies to everyone. That said, we are proud to introduce the new Turbo-Side Intakes for the N54 and tell you all about how they will help improve not only your engine’s performance but looks as well. 
The N54 is now well over ten years old. It was neither the first turbocharged BMW engine, nor the most powerful engine, but it was definitely one of the most easily tunable. The N54 can readily support 500, 600, and more horsepower with upgrades thanks to the benefits of the time-tested combination of turbochargers slapped on the side of a hearty straight-six and respectable displacement. Despite its age, tuning companies, including us, are still developing parts to help maximize the performance potential of the platform. Our Turbo-Side Intakes are, in our humble opinions, the latest piece to that puzzle.

On their own, intakes, in general, don’t offer a whole lot more than a cleaner engine bay, some induction noise, and maybe a pony or two in each gear. In other words, the biggest difference you’ll find after installing one is what you see when you open the hood. However, intakes do offer provable performance improvements over factory units, at least in the case of the BMWs we have tested, when it comes to engine operation and open the door to modifications that may require an aftermarket intake. 

Some intakes may not develop actual power, but the new Turbo-Side Intakes we designed certainly do. Although it isn’t exactly a massive gain, they still add 23WHP and 16 ft-lbs of torque, so that’s definitely noticeable. Those power gains are a direct result of the change in design between the factory unit and our own.

Factory intakes, as we discussed in our Intake
 Upgrade Guide, are designed to offer the least restriction possible while still being quiet inside the cabin. They generally are not separated from the rest of the engine bay, so all the hot air from your exhaust and engine running at operating temperature is what the intake draws in. As we know from science class, hot air is less dense than cold air. With cost also being a factor in determining how the intakes are designed, the factory air box suffers in that it lacks a partition, or heat shield, to help reduce intake air temperatures.
READ COLD AIR INTAKE GUIDE
Unlike those factory versions, our new Turbo-Side Intakes are separated and receive a direct supply of cold air to the intakes. Again, cold air is denser and thus allows more fuel to be added for slight performance gains. That's just the beginning. 

Perhaps more impressive, however, is how clean the system looks under the hood. Originally, the airbox sat nearly in front of the driver and routed its piping over the top of the engine. It just looked cluttered and bulky. The Turbo-Side Intake System is contained to just above the turbos and isolated from the rest of the bay with a sleek heat shield and duct that gives an overall visual upgrade to the engine bay. With our system, you can definitely appreciate both the visual and performance benefits available when you're looking at the bay or putting your car through its paces.

So, these intakes do offer some performance benefits and give you a significant improvement to the engine bay’s looks, but they also are one of the key ingredients to reaching real power and performance gains. In order to meet requirements for most tunes and other off the shelf upgrades to make their advertised power figures, you will need a performance intake system. That applies to all BMWs. However, the Turbo-Side Intakes we are now proud to introduce are perhaps the cleanest and most effective on the market.

If you are searching for the perfect recipe for bolt-on performance upgrades, these new Turbo-Side Intakes are definitely the choice system in terms of both looks and added power. Of course, they aren’t your only options, just the newest in the long list of available intake solutions on the market. Once again, it will all come down to looks and preference, so go back and read our Intake Upgrade Guide for some of our favorites! Lastly, if you have an N54, do yourself a favor and check out our full selection of performance parts to help get you to your horsepower goals, and don’t forget the Turbo-Side Intakes!
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