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Turbo Upgrades
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For those seeking a top-tier OE replacement upgrade turbo for their 1.6L car, the BorgWarner unit is the ultimate solution. It seamlessly replaces vehicles originally equipped with MINI Factory Borg Warner Turbochargers, offering an upgraded alternative for both the Cooper S and JCW models.
Keep in mind that the larger inlet necessitates an aftermarket intake system featuring a silicone hose or an aftermarket silicone intake hose to adapt to the larger inlet. Adjustments to factory inlet boots may be required for proper fitting.
With a piggyback tune, this turbo delivers power ranging from 225 to 255HP. With a more aggressive tune, you can push the limits up to 300HP. However, it's crucial to acquire a custom flash tune (not supplied) to prevent the turbo from backing off during full pulls.
Warranty claims for this turbo upgrade must be supported by a receipt from a professional repair facility, indicating the installation date and vehicle mileage. Additionally, a separate receipt from a professional repair facility should accompany the warranty claim, specifying the date and mileage of the turbocharger failure, reasons for the failure, and proposed repair solutions if necessary. Borg Warner will consider replacing a failed turbocharger due to material and workmanship defects, provided proper documentation is provided. Please note that all associated labor charges for diagnosis and repair are the responsibility of the vehicle owner.
JM Turbo Cooper offers the Extreme GTD47 K04 turbocharger upgrade designed to deliver outstanding reliability and high-performance gains for the 2007+ MINI Cooper. This upgrade is a top choice for Mini and Peugeot owners, providing exceptional power output for applications exceeding 280hp.
Update: The improved gasket design on the back side now features a seamless gasket inset, and the package includes a new gasket for your convenience.
The JMTC Extreme GTD47 upgrade boasts a high-pressure, high-flow, dual-scrolling turbo that features a substantial 50mm compressor wheel. This design ensures maximum boost at the top end of the RPM range, making it ideal for track, off-road, and extreme street applications. The large GTX exhaust turbine complements the setup, delivering extra boost at high RPMs and preventing torque loss compared to the stock K03 turbine.
Whether you seek extreme track performance, drag strip dominance, or unrivaled street upgrades, this turbocharger is the perfect choice. It offers impressive torque and durability, outperforming many other options on the market. To fully unleash its potential, we recommend pairing it with one of our aftermarket exhaust systems.
It's important to note that to harness the additional power, a custom tune is required. Running without a tune will result in minimal to no HP gain.
Estimated Power Gains:
Extreme GTD Upgrade Features:
For engine and turbocharger reliability, JMTC recommends a 3.0" or larger downpipe/exhaust size for the GTD turbochargers. Please avoid using the stock downpipe or stock-sized catalytic converter.
The OEM intake boot can be used with the removal of the inner sleeve for N14 engines. For N18 engines, the OEM boot at the turbo connection will need to be heated and expanded slightly, which can be done with a heat gun. This turbocharger also fits AEM intake, NM Eng intake, and Forge Intake (Boot). Please note that the hose might need to be warmed and stretched over with a hose expander.
Vargas builds on their stock replacement turbo kits with this Stage 1 upgrade. Using the stock housings but with improved internals, this N54 turbo upgrade is good up to 470whp. Stage 1 is a hybrid of stock and upgraded internals - a new larger higher-flow cast compressor wheel matched with the stock turbine wheel. The Vargas stainless wastegate arms are also part of the rebuild. The Vargas standard rebuild is good up to 400whp so Stage 1 gives you a more capable turbo system to match your upgrade goals.
Vargas Turbo Technologies has been in business since 1979, offering rebuilt and re-engineered turbo solutions. With the N54, they identified a need for both cost-effective turbo replacements and proven turbo upgrades. The biggest complaint on N54 turbos is the rattle from the wastegates. The factory wastegates have actuator arms that lose their tension very easily, resulting in an annoying rattle. N54 wastegate rattle is the biggest complaint we hear from our customers. Vargas rebuilds each turbo assembly with OEM internals and replaces the actuator arm with a stainless steel arm of their own design. Because the Stage 1 uses stock BMW/Mitsubishi turbo housings, all of the stock turbo plumbing and intake hoses will match up. It's recommended that the rest of the system be upgraded to handle your tuning goals. The final Vargas rebuilt turbos are better than the factory rebuilds and at a lower cost!
Two other upgrades are also offered for Stage 1 -
Silicone inlet and turbo manifold pipes are also strongly recommended as upgrades over the stock plastic and aluminum pipes. Since both are prone to cracks, the silicone will be a lot stronger and almost no chance of a disappointing boost leak. Turbo replacement is the best time to add the silicone hoses. There are two styles of turbo inlet pipes - with stock diverter valves (DV) or with aftermarket blow-off valve (BOV). For the turbo manifold, there is no standardized connection to the intercooler so you will need to make note of which type you have and select the appropriate adapter from the options list.
Option A (+$25) - 2.5" and 90* turn up from the intercooler (CPE, AA, ER Sport, CXRacing)
Option B - 2.5" and angled up from the intercooler (AD Engineering, ETS, Helix, Cobb, ER Compeition)
Option C (+$25) - 3.0" and angled up from the intercooler (VRSF)
Option D (+$25) - 2.75" and angled up from the intercooler (Wagner EVO)
Option E (+$50) - 3.0" and straight out from the intercooler (AA Race)
Option F (+$25) - 2.5" and straight out from the intercooler (Forge)
Option G (+$15) - 3.0" and straight up from the interooler (AMS)
Install Kit - an Install Kit is also offered that includes all of the additional parts and pieces that will need to be replaced during this install (gaskets, hardware, etc).
Oil Recommendation - modern engine oil is formulated for emissions and to be environmentally friendly. The additives in current oil lowers the oil's ability to withstand high temperatures and stresses, lowering its shear strength and its lubricating properties. Vargas recommends oils with high ZDDP (zinc and phosphorus) content that will better protect and cool the turbo bearings. Examples of high-zinc oils are Red Line Race, Red Line Euro, Motul 300V Racing, Joe Gibbs Racing, Valvoline VR-1 oil, and most Diesel-spec oils that you can buy off-the-shelf. Some oils, especially the Race type, will need more frequent oil changes and may be harmful to catalytic converters.
WHP rating: 470. This rating is used to compare various stage of Vargas turbo kits. There is no advertised horsepower gain with this kit as it depends on your other mods and tuning. The rating is provided as a reference to use in your tuning planning. Custom N54 tuning is recommended to match these turbos to your existing mods and upgrades.
For the racing enthusiast or those just looking for the best, this is the ultimate upgrade to fully maximize the power output of your EWG N55 engine. The compressor wheel inside the turbocharger is increased in size allowing ~30% greater flow thus enabling additional boost pressures at higher engine speeds while retaining efficiency.These are fully cast turbos that are manufactured to Dinan specifications along with an upgraded thrust system over the stock turbo to ensure reliable and prolonged life. In order to attain maximum advertised power gains these big turbos will need to be paired with DINANTRONICS Stage 4, as well as Dinan’s intercooler to fully regulate the boost increase and deliver a polished product although the exhaust and intake are also recommended.
Benefits of the Dinan Big Turbo for the EWG N55 Engine:
Upgrade your turbocharger's performance with this kit, presenting an impressive 30% increase in the compressor wheel size within the stock turbocharger housing. Experience a significant power boost by elevating pressure at high RPMs while maintaining efficient operation. The enhanced thrust system ensures prolonged turbocharger life, and for optimized performance, consider pairing it with Stage 4 Dinan software to manage the additional boost.
With over 35 years of expertise, Dinan leads BMW tuning advancements, prioritizing balanced enhancements that preserve the original driving feel. Backed by a four-year, 50,000-mile warranty, Dinan parts undergo rigorous testing, ensuring reliability. Upon significant part installation, enthusiasts receive an exclusive trunk badge, signifying the transition to Dinan performance.
Vargas Stage 1 N20 turbo upgrade is good up to 350whp with proper tuning and high grade fuel. Vargas N20 turbo is an all-new turbo specially made for Vargas. They build it with a billet compressor wheel of their own design and a stock turbine. It will accept all of the stock water and oil lines and the original diverter valve (upgraded DV is recommended). This kit is a direct bolt-on replacement for the original turbo and necessary if you want to start making big power from the N20.
The stock plastic diverter valve and chargepipe is the weakest point for boost leaks (the plastic cracks). Vargas Turbo recommends upgrading it to a stronger DV design. The aluminum DV designs will hold up to just about any boost level currently available.
Vargas Turbo Technologies has been in business since 1979, offering rebuilt and re-engineered turbo solutions. For the BMW market, they identified a need for both cost-effective turbo replacements and proven turbo upgrades. It's recommended that the rest of the system be upgraded to handle your tuning goals. The final Vargas rebuilt turbos are better than the factory rebuilds and at a lower cost!
Oil Recommendation - modern engine oil is formulated for emissions and to be environmentally friendly. The additives in current oil lowers the oil's ability to withstand high temperatures and stresses, lowering its shear strength and its lubricating properties. Vargas recommends oils with high ZDDP (zinc and phosphorus) content that will better protect and cool the turbo bearings. Examples of high-zinc oils are Red Line Race, Red Line Euro, Motul 300V Racing, Joe Gibbs Racing, Valvoline VR-1 oil, and most Diesel-spec oils that you can buy off-the-shelf. Some oils, especially the Race type, will need more frequent oil changes and may be harmful to catalytic converters.
WHP rating: 350. This rating is used to compare various stage of Vargas turbo kits. There is no advertised horsepower gain with this kit as it depends on your other mods and tuning. The rating is provided as a reference to use in your tuning planning. Custom tuning is recommended to match thIS turbo to your existing mods and upgrades.