So, you're looking to boost the power of your 350z, huh? Good choice! The APS twin turbo kit is a legendary upgrade, known for transforming the Z into a serious performance machine. Let's dive into what makes this kit so special, what to look for when buying one, and why it's still a hot ticket item in the 350z community. We'll cover everything from performance gains to potential pitfalls, ensuring you're well-equipped to make an informed decision. Whether you're a seasoned gearhead or just starting your journey into forced induction, this guide will provide the insights you need to find the perfect APS twin turbo kit for your 350z. Get ready to unleash the beast within your ride!

What Makes the APS Twin Turbo Kit So Special?

Okay, guys, let's get into the nitty-gritty. The APS twin turbo kit isn't just another bolt-on upgrade; it's a comprehensive system designed to dramatically increase your 350z's horsepower and torque. What sets it apart from other kits on the market? Several factors contribute to its legendary status. First off, the quality of the components is top-notch. APS (Advanced Power Systems) used high-grade materials and precise engineering to ensure durability and reliability. The kit typically includes two Garrett turbochargers, known for their efficient performance and ability to handle significant boost pressures. These turbos are strategically sized to provide a broad powerband, meaning you'll feel the extra oomph throughout the entire RPM range, not just at the top end. Moreover, the APS kit often features meticulously designed intercooling systems. Keeping those intake air temperatures down is crucial for preventing detonation and maximizing power. The intercoolers are usually large and efficient, ensuring optimal cooling even under demanding conditions. Furthermore, the kit includes all the necessary hardware and plumbing for a seamless installation. While professional installation is always recommended, the APS kit is designed to be relatively straightforward, minimizing potential headaches. The APS twin turbo kit also boasts excellent tuning capabilities. With the right engine management system and a skilled tuner, you can extract even more power from the kit while maintaining safe and reliable operation. Many tuners have extensive experience working with the APS kit, making it easier to dial in the perfect tune for your specific setup. Lastly, the APS kit has a strong reputation within the 350z community. Countless enthusiasts have successfully installed and run this kit, and their positive experiences speak volumes about its quality and performance. The APS twin turbo kit remains a sought-after upgrade for those seeking serious power gains without sacrificing reliability.

Key Considerations When Buying an APS Twin Turbo Kit

Alright, so you're convinced the APS twin turbo kit is the way to go. Awesome! But before you slap down your hard-earned cash, let's talk about some crucial things to consider when buying one, especially since these kits can be a bit rare these days. First, condition is king. If you're buying a used kit (which is likely, given their limited availability), carefully inspect all the components. Look for any signs of damage, such as cracks, dents, or corrosion. Pay close attention to the turbochargers themselves, checking for excessive play in the turbine and compressor wheels. Any significant damage could indicate that the turbos need to be rebuilt, which can add a considerable expense to your project. Next, completeness is crucial. Ensure the kit includes all the necessary components for installation. This typically includes the turbochargers, intercoolers, piping, manifolds, wastegates, blow-off valves, and all the necessary hardware. If any parts are missing, you'll need to source them separately, which can be time-consuming and costly. Don't assume anything; always verify that everything is included before making a purchase. Another critical factor is compatibility. While the APS twin turbo kit is designed specifically for the 350z, there may be variations depending on the year and model of your car. Some kits may be designed for specific engine management systems or fuel systems. Make sure the kit you're buying is compatible with your particular 350z to avoid any installation headaches. Furthermore, research the seller. If you're buying from an individual, ask plenty of questions and request detailed photos of the kit. Check their reputation on forums and online marketplaces to ensure they're a reputable seller. If you're buying from a shop, make sure they have experience with the APS kit and can provide support if needed. And lastly, factor in installation costs. Unless you're a seasoned mechanic, you'll likely need to have the kit professionally installed. Installation can be labor-intensive, so get quotes from several shops before committing. Don't forget to factor in the cost of tuning as well, as you'll need to have your car tuned after the kit is installed to ensure optimal performance and reliability. By carefully considering these factors, you can increase your chances of finding a high-quality APS twin turbo kit that will transform your 350z into a true performance machine.

Where to Find APS Twin Turbo Kits for Sale

Okay, so where do you actually find these elusive APS twin turbo kits? Since they're not exactly rolling off the assembly line anymore, you'll need to get a bit creative. Online marketplaces like eBay and Facebook Marketplace are your best bet. Be prepared to do some digging, as listings can be sporadic. Use specific search terms like "APS 350z twin turbo kit" or "350z turbo kit" to narrow down your results. When you find a listing, carefully review the description and photos, and don't hesitate to ask the seller questions. Another great resource is 350z and G35 forums. These online communities are filled with enthusiasts who are often buying, selling, and trading parts. Post a "want to buy" ad in the classifieds section, and keep an eye on existing listings. You might just stumble upon someone who's looking to sell their APS kit. Local performance shops are another potential source. Even if they don't have an APS kit in stock, they may be able to help you track one down or connect you with someone who's selling. Shops that specialize in Nissan performance are particularly likely to have connections in the 350z community. Online classifieds websites can also be worth checking. Websites like Craigslist and OfferUp sometimes have listings for car parts, including turbo kits. Just be sure to exercise caution when buying from these sources, as scams are not uncommon. Always meet in a public place and inspect the kit thoroughly before handing over any money. Finally, networking with other 350z owners can be a great way to find an APS kit. Attend local car meets and events, and strike up conversations with other enthusiasts. You never know who might have a lead on a kit for sale. Finding an APS twin turbo kit may require some patience and persistence, but with a little effort, you'll eventually find the perfect kit to transform your 350z into a true performance machine.

Performance Gains and Expected Power Output

Let's talk about the fun part: power! What kind of performance gains can you expect from an APS twin turbo kit on your 350z? While the exact numbers will vary depending on your specific setup and tuning, you can generally expect a significant increase in both horsepower and torque. A properly installed and tuned APS kit can easily push your 350z to 400-500 horsepower at the wheels, and even higher with supporting modifications. The key to maximizing power output is a good tune. A skilled tuner can optimize the engine's air-fuel ratio, timing, and boost levels to extract the most power safely and reliably. It's essential to invest in a quality engine management system, such as UpRev or Haltech, to ensure precise control over the engine's parameters. In addition to horsepower gains, you'll also notice a dramatic improvement in torque. The APS kit provides a broad and flat torque curve, meaning you'll feel the extra power throughout the entire RPM range. This makes the 350z much more responsive and fun to drive, both on the street and on the track. Of course, achieving these power levels requires more than just the APS kit. You'll also need to consider other supporting modifications, such as upgraded fuel injectors, a high-flow fuel pump, and a larger exhaust system. These upgrades will ensure that your engine can handle the increased power and fuel demands of the turbochargers. It's also important to consider the limitations of your 350z's stock internals. While the VQ35DE engine is relatively robust, it's not designed to handle extreme power levels. If you're planning to push the limits of the APS kit, you may want to consider upgrading the connecting rods, pistons, and other internal components to ensure long-term reliability. Remember, building a high-performance 350z is a system. Every component needs to work together in harmony to achieve the desired results. With the right combination of parts and a skilled tuner, the APS twin turbo kit can transform your 350z into a true beast on the road or track.

Potential Pitfalls and Common Issues

No upgrade is without its potential downsides, so let's talk about some common issues you might encounter with the APS twin turbo kit. Forewarned is forearmed, right? One of the most common issues is installation complexity. While the APS kit is designed to be relatively straightforward, it's still a complex system that requires a good understanding of automotive mechanics. If you're not comfortable working on cars, it's best to have the kit professionally installed. Even experienced mechanics can run into snags, so be prepared for the possibility of unexpected challenges. Another potential pitfall is tuning difficulties. Getting the tune just right is crucial for maximizing power and reliability. If the tune is too aggressive, you could damage your engine. If it's too conservative, you'll be leaving power on the table. It's essential to find a tuner who has experience working with the APS kit and understands the nuances of the VQ35DE engine. Heat management can also be a concern with turbo kits. The turbochargers generate a lot of heat, which can negatively impact performance and reliability. Make sure your intercooler is functioning properly, and consider adding heat shields or wrapping to protect sensitive components. Boost creep can sometimes be an issue. This is when the boost pressure exceeds the set level, which can be dangerous for your engine. Make sure your wastegates are properly sized and functioning correctly to prevent boost creep. Oil leaks are another common problem with turbo kits. The turbochargers require a constant supply of oil for lubrication, and leaks can occur at the oil lines or fittings. Regularly inspect the oil lines and fittings for any signs of leaks, and address them promptly to prevent engine damage. Finally, component failure is always a possibility. Turbochargers are complex mechanical devices that can fail over time. Be prepared for the possibility of needing to rebuild or replace your turbos at some point. By being aware of these potential pitfalls and taking steps to mitigate them, you can minimize the risk of problems and enjoy the full benefits of your APS twin turbo kit.

Is the APS Twin Turbo Kit Still Worth It?

So, the million-dollar question: is the APS twin turbo kit still worth it in today's market? Absolutely! Despite its age, the APS kit remains a top-tier upgrade for the 350z, offering a unique blend of performance, reliability, and tuning potential. While newer turbo kits may offer slightly more advanced features, the APS kit has a proven track record and a strong following within the 350z community. Its reputation for quality and performance speaks for itself. One of the main reasons the APS kit is still worth it is its simplicity. Compared to some of the more complex turbo kits on the market, the APS kit is relatively straightforward to install and tune. This makes it a good option for those who are new to forced induction or prefer a more traditional approach. Another advantage of the APS kit is its availability of parts. While the kits themselves may be hard to find, replacement parts and accessories are still readily available from various sources. This makes it easier to maintain and repair the kit over time. The tuning potential of the APS kit is also a major selling point. With the right engine management system and a skilled tuner, you can extract a significant amount of power from the kit while maintaining safe and reliable operation. Many tuners have extensive experience working with the APS kit, making it easier to dial in the perfect tune for your specific setup. Finally, the cool factor of the APS kit cannot be overstated. It's a legendary upgrade that has stood the test of time. Owning a 350z with an APS twin turbo kit is a badge of honor within the enthusiast community. While finding an APS kit may require some effort, the rewards are well worth it. If you're looking for a proven and reliable way to boost the performance of your 350z, the APS twin turbo kit is still an excellent choice.

So there you have it, guys! Everything you need to know about finding and buying an APS twin turbo kit for your 350z. Happy boosting!