3 Details About Upgrading Your N55 Turbocharger

# 3 Details About Upgrading Your N55 Turbocharger <iframe src="https://async.com/show/episode-embed-player/4z57PznA/dzInFvW3?theme=light&mode=compact" width="100%" height="150px" style="border:none;background-color:transparent; " allowtransparency="true"></iframe>  In 2009, BMW introduced the N55 engine in their F07 5 Series Gran Turismo. Since then, the N55, a turbocharged straight-six engine, has appeared in a number of BMW vehicles, including the E90 3 Series, F32 4 Series, and many others.   Eventually, production of the N55 ended in 2021 in favor of the B58 engine (which entered production in 2015). With over a decade in production, several N55 engines are still powering BMWs on the road today. And enthusiasts frequently seek out <a href="https://vargasturbo.com/product/vtt-n55-gc/">N55 turbo</a> upgrades.   You may be one of them! As you consider upgrading your N55 turbo, here are a few details you should know.   <figure class="wp-block-image aligncenter size-large is-resized"><a href="https://vargasturbo.com/product/vtt-n55-gc/"><img src="https://vargasturbochargertechnologiesblog.wordpress.com/wp-content/uploads/2026/03/copy-of-8-1.jpg?w=400" alt="VTT N55 GC-EWG and GC-PWG upgraded turbochargers side by side with gold and blue compressor wheels." class="wp-image-215" style="width:493px;height:auto"/></a></figure>   Choosing the Turbo   With a strong aftermarket for BMW turbos, including N55 turbos, you’ll find different options to meet different upgrade requirements. As you research upgrades, for example, you may come across N55 GC and N55 GC+ turbocharger upgrades.   The N55 GC upgrade is engineered to support 600 WHP. The GC+ is built to support 700 WHP. When buying, you can also choose your wastegate style (EWG or PWG). Consider picking up a new aluminum intake and installation kit to further maximize results.   Enhancements Over OEM Options   Why install an aftermarket N55 turbo upgrade? It’s all about making superior refinements over what OEM options offer. There are <a href="https://vargasturbo.com/product/vtt-n55-gc/">BMW N55 turbo upgrade</a> units that start with the OEM design and make strategic changes to achieve a higher degree of power and performance.   <figure class="wp-block-image aligncenter size-large is-resized"><a href="https://vargasturbo.com/product/vtt-n55-gc/"><img src="https://vargasturbochargertechnologiesblog.wordpress.com/wp-content/uploads/2026/03/copy-of-img_1462.jpg?w=400" alt="VTT N55 turbocharger kit components: compressor housing, turbine housing, exhaust manifold, and CHRA." class="wp-image-217" style="aspect-ratio:1.5;width:493px;height:auto"/></a></figure>   For example, turbo upgrades are engineered with a larger, more efficient inlet area. These units also include enhancements to the bearing housing oil structure and thrust bearing. These are small adjustments, but they make a genuine difference on the road.   Expected Gains   Speaking of making a difference on the road, that’s really the number one reason to upgrade from stock. A new N55 turbo helps enhance your dyno chart numbers and quarter-mile time. But it doesn’t end at swapping out your N55 turbo.   If your goal is gains, you’ll also want to consider <a href="https://vargasturbo.com/product/n55-stage-1-jb-upgrade-kit-new/">N55 turbo upgrade Stage 1</a> options. An N55 Stage 1 upgrade kit improves airflow and boost pressure, giving you more acceleration, horsepower, and torque. It even translates to refined engine efficiency. This upgrade is an excellent way to take your vehicle’s performance to the next level.   <figure class="wp-block-image aligncenter size-large is-resized"><a href="https://vargasturbo.com/product/n55-stage-1-jb-upgrade-kit-new/"><img src="https://vargasturbochargertechnologiesblog.wordpress.com/wp-content/uploads/2026/03/copy-of-img_0521-1.jpg?w=400" alt="VTT N55 Stage 1 PWG upgraded turbocharger with blue billet compressor wheel and red inlet cap." class="wp-image-218" style="aspect-ratio:1.5014746298533421;width:492px;height:auto"/></a></figure>   About Vargas Turbocharger Technologies   Based in Hayward, CA, Vargas Turbocharger Technologies specializes in designing and engineering turbocharger upgrades and components. VTT™ offers a range of brand-new turbos for several vehicle makes, including BMW. They also offer a range of expertly rebuilt OEM turbos for select vehicles. Whether you’re searching for a comprehensive turbo kit for your high-performance BMW, you want to upgrade other systems (engine, fuel, drivetrain, etc.), or you need service on your turbo system, VTT™ has the solution for you.   Upgrade your N55 turbo at <a href="https://vargasturbo.com/">https://vargasturbo.com/</a>   This article was originally published on <a href="https://vargasturbo.com/">vargasturbo.com</a>’s blog <a href="https://vargasturbo.com/what-to-know-before-upgrading-your-n55-turbocharger/" target="_blank" rel="noreferrer noopener">here</a>.