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Top 10 Best Sti Turbo Upgrade Reviews & Comparison [Update]

We all know that the best sti turbo upgrade is one of many out there. That’s why we’ve taken 77911 reviews from top experts and organized them according to our rankings for you. 

We know how hard it is to find a great sti turbo upgrade, which is why our team went through the whole research process and put up this list for you. These are just some of their favorites!

We have been exhaustive in our search for the perfect sti turbo upgrade of 2026. If quality matters most, then check this list: 

Bestseller No. 1
maXpeedingrods TD05 Turbo Turbocharger for Subaru Impreza WRX STI EJ20 EJ25 2002-2006, with Billet Compressor Wheel, Street JD Series
  • 【Compatible with Engine】For 2.5L 2458CC H4 GAS DOHC Turbocharged, for 2.0L 1994CC H4 GAS DOHC Turbocharged
  • 【Compatible with Vehicle】For Subaru IMPREZA WRX / STI EJ20 EJ25 engine 2002-2006
  • 【Easy Installation & Direct OEM Replacement】Engineered as a direct OEM replacement, ensuring easy installation and meeting OEM standards. It restores factory-level efficiency and functionality, offering a seamless upgrade for your vehicle with no modifications required
  • 【Better Turbine Housing & Wheel】The turbine housing made of silicon-molybdenum is resistant to high temperatures of 1562°F. And the upgraded alloy turbine wheel has high oxidation stability and can operate well at 1832°F
  • 【Upgraded Billet Compressor Wheel】Forged full-machined billet aluminum compressor wheels, featuring an aerodynamic design that improves airflow and compression efficiency. It ensures durability, stability, and enhanced boost response under various driving conditions
Bestseller No. 2
TD05-20G Turbo Charger Turbocharger with Wastegate Replacement for Subaru Impreza WRX STI EJ20 EJ25 2002-2006 AKWH
  • Fitment: Replacement for Subaru IMPREZA WRX / STI EJ20 EJ25 engine 2002 - 2006; Replacement for Subaru Impreza WRX Limited Sedan 4-Door; Replacement for Subaru Impreza WRX Limited Wagon 4-Door; Replacement for Subaru Impreza WRX Sedan 4-Door
  • Fitment: Replacement for Subaru Impreza WRX STI Limited Sedan 4-Door; Replacement for Subaru Impreza WRX STI Sedan 4-Door; Replacement for Subaru Impreza WRX TR Sedan 4-Door; Replacement for Subaru Impreza WRX Wagon 4-Door.
  • TD05-20G Turbo: TD05-20G Turbo boost horsepower up to 380HP. It replaces the TD04 for a TD05H turbine wheel, enlarges the turbine housing area to 7 square cm to improve the exhaust efficiency, thus gains more power than the stock turbo
  • NOTICE: All for WRX Wagon engines and automatic sedan engines came with a TD04,all manual WRX sedans including STI versions had a TD05 model. If your original turbo is TD04 model, some modification (connections, bolts, fixed screws etc.) is required.
  • Note: Please confirm your original fitment before Purchasing; Professional installation is highly recommended.
Bestseller No. 3
TRQ Turbocharger Compatible with 2008-2014 Subaru Impreza 2015-2021 WRX STI
  • Reference Number(s): 14411-AA700
  • YOUR TRUSTED DIY VIDEO SOURCE: TRQ is the leading producer of high-quality replacement parts and DIY videos to help you get the job done right. We are committed to providing the best Customer Experience for Compatibility, Quality, Durability, and Ease of Installation with the largest catalog of DIY videos available for replacement parts online. Our mission is to help you "View before you Do" and if the video is not available for this part, we are working on bringing it to you soon!
  • TRUST & COMPATIBILITY: TRQ has been well established as the Premium Choice for replacement parts for over 25 years and is committed to providing the best possible shopping experience for Direct Fit Replacement Parts online. Please ensure that you confirm fitment with the Amazon Garage & "amazonconfirmedfit". Please also read the full compatibility chart in the product description below to ensure compatibility for your vehicle.
  • EASE OF INSTALLATION: Save time and effort with pre-assembled components designed as direct replacements for the original equipment, ensuring precise fit and eliminating the need for modifications.
Bestseller No. 4
AJP Distributors Dual Core 2-Row Full Aluminum Radiator Engine Motor Cooling Upgrade Compatible/Replacement For Impreza WRX GC8 M/T STi Turbo Engine Swap 1992 1993 1994 1995 1996 1997 1998 1999 2000
  • Surface Finish: Aluminum
  • Placement on Vehicle: Front
  • Compatible/Replacement For: 92-00 WRX w/Sti Motor Swap
  • Installation Guide: No Installation Guides Included
  • Notes: Will Only Fit W/Sti Turbo Motor Swap
Bestseller No. 5
Turbo Bolt and Nut Kit - Compatible with Subaru Impreza WRX Sti - K-Motor
  • Turbo Bolt and Nut Kit
  • Compatible with Subaru Impreza Wrx Sti
  • Compatible models: Outback, Legacy Turbo, Impreza and Wrx & STi Turbo, Forester Turbo, Baja Turbo, STi
  • FEATURES - Premium quality bolts and nuts - Solid replacement - Made of steel
  • What's in the box: (2) Bolts - (8) Nuts and (3) Studs
SaleBestseller No. 6
Head Stud Kit for Subaru Impreza WRX STi EJ20 2.0L & EJ25 2.5L DOHC Engines - Xotic Performance™ CP882
  • Direct Fit Replacement - Fits all Subaru Impreza WRX & STI TURBO EJ20 2.0L and EJ25 2.5L DOHC Turbo Engines. Engineered to unleash more performance out of your vehicle. Please see vehicle compatibilities tab above to ensure accurate fitment.
  • Ultra Strength - Xotic 7200 material properties allow for far greater tensile strength compared to 8740 chromoly steel head studs. Rated at 220,000 psi tensile strength. Threads rolled after heat treatment for optimum fatigue strength. Ample clamping strength prevents cylinder heads from lifting.
  • Easy Installation - Broached stud ends install & make cylinder head removal easier. Installation manual is included with drawn diagrams to ease the installation process. Head studs are designed to retain cylinder seal even with today's extreme high pressure turbo systems. These studs far exceed clamping forces provided by standard head bolts.
  • Reduced Head Gasket Failure: By replacing the factory head bolts with high-quality head studs, the risk of head gasket failure is significantly reduced, especially in high-performance or boosted applications.
  • Kit Includes - 12x Heads Studs, 12x Nuts, 12x Hardened Parallel Washer, 1x 9/16 12pt Socket, 1x 4mm Allen Wrench, 1x Fastener Assembly Lubricant & Instruction Manual. Black oxide finish protects from wear and tear. Hardened parallel washers allow for uniform load distribution and accurate torque readings.
Bestseller No. 7
Mishimoto MMHOSE-SUB-08IHRD Silicone Induction Hose Fits Subaru WRX/STI 2008-2014 Red
  • Compatible with the 2008–2014 WRX and 2005–2009 Legacy GT/Outback XT
  • INNER DIAMETER: 2.38" turbo side 2.75" intake side
  • OUTER DIAMETER: 2.63"-3.25"
  • CNC-machined aluminum fittings for added durability and easier installation
  • Mishimoto Lifetime Warranty
Bestseller No. 9
Mishimoto MMHOSE-SUB-INTBL Intercooler Charge Air Cooler Hoses Fits Subaru Impreza WRX/STI 2001-2005 Blue
  • Direct fit for 2001-2005 Subaru WRX
  • Maximum Temperature: 330F
  • Constructed with high grade silicone and heat-resistant embedded fibers
Bestseller No. 10
Mishimoto MMHOSE-SUB-IHBK Silicone Induction Hose Fits Subaru WRX 2001-2007 / STI 2004-2015 Black
  • Compatible with 2001–2007 Subaru WRX and 2004–2015 Subaru WRX STI
  • INNER DIAMETER: 2.0" & 2.6"
  • OUTER DIAMETER: 2.4" & 3.1"
  • High grade silicone and heat-resistant embedded fibers feature max temp of 330°F
  • Mishimoto Lifetime Warranty

How Do We Test Sti Turbo Upgrade 

If you’re looking for an unbiased opinion on any product, we’ve got your back. Our reviews are rigorous and thorough – taking all factors into account, including design, features, price-to something else that matters most in making an informed decision before purchasing one of these items!

Factors to Consider Before Purchasing Sti Turbo Upgrade

What’s the point of a buying guide if you don’t know what factors to consider before purchasing sti turbo upgrade?

  • Satisfy your need
  • Features & Specifications
  • Quality & Durability
  • Brand Value
  • Customer Reviews & Ratings
  • Price
  • Customer Service

You may be wondering why you need to consider some factors about a sti turbo upgrade before purchasing. It’s because there are so many things that can go into making your decision, and knowing all of them upfront will help keep any surprises later on in life!

What’s The Best Place To Purchase Sti Turbo Upgrade

Online shopping is the way of 2026, and if you want to make sure that your purchase will be an excellent one, then there’s no better place than online. You’ll have access to so many more products in different shapes, sizes, colors, and flavors brands with unbeatable prices.

There are so many different options when it comes to choosing a new sti turbo upgrade, and we truly believe that you should do your research before making such an important purchase. The questions might include:

  • Should I buy a new, used, or refurbished sti turbo upgrade?
  • Do you really need the high quality sti turbo upgrade there is?
  • What are must-have features for sti turbo upgrade?
  • Best time to buy a sti turbo upgrade?
  • What are the benefits of buying sti turbo upgrade?
  • Why is it critical to invest in a good in today’s market, particularly the best one?

In our opinion, investing in a good, high-quality sti turbo upgrade will make you feel confident about your purchase. You can tell that the company put effort into making sure it was top-notch and took their time with designing everything from packaging to graphics for marketing purposes because this makes them seem more reliable than competitors who don’t invest so much money on these things (especially if they’re cheap). Plus, having quality materials ensures longevity which is always nice. 

Tips For Being A Smart Online Shopper

When shopping for a product online, be sure to read the reviews before making a purchase. This can give you a good idea of what to expect from the product and can help you decide if it’s the right fit for your needs. Additionally, be sure to check the return policy and shipping times before buying anything. This way, if you’re not happy with the product, you can easily return it without any hassle. And if you need the product quickly, you’ll know that it will arrive in a timely manner.

When looking for a sti turbo upgrade, be sure to compare prices from different retailers. This way, you can be sure you’re getting the best deal possible. Additionally, be sure to read the fine print before making any purchase, as some retailers may have hidden fees or charges. By taking the time to do your research, you can be sure you’re getting the best possible deal on the product you want.

These are just a few things to keep in mind when shopping for a product. By taking the time to consider your needs and doing your research, you can be sure you’re getting the best possible product for your needs. And if you have any questions, be sure to contact customer service or the retailer before making your purchase.

FAQs About Best Sti Turbo Upgrade

What is More Important: a Good Product or a Good After-sales Service?

When it comes to choosing a sti turbo upgrade, many people prioritize the quality of the product itself. However, after-sales service can be just as important, especially if something goes wrong with the product. So when it comes to choosing a product, it’s important to weigh both factors and decide which is more important to you. If quality is your main concern, be sure to choose a product that comes from a reputable brand and has good reviews. However, if you’re more concerned with after-sales service, be sure to choose a product from a company that offers excellent customer service. 

How to Save Money When Buying Online? 

When shopping for a sti turbo upgrade online, there are a few things you can do to save money. First, be sure to compare prices from different retailers before making a purchase. This way, you can be sure you’re getting the best deal possible. Additionally, be sure to read the fine print before making any purchase, as some retailers may have hidden fees or charges. By taking the time to do your research, you can be sure you’re getting the best possible deal on the product you want. Additionally, you can also sign up for Amazon Prime, which gives you access to exclusive deals and free shipping on many items. So if you’re looking for the best possible deal on Amazon.

Bottom Line

We’re always looking to improve the way in which we give you access, so be sure not to miss out on all of our great updates by visiting us online right now.

We’re here for you. We’ll help answer any questions or concerns about the sti turbo upgrade as long as they don’t involve technical details like how it works in a general sense! If there’s anything else on your mind, please let us know because someone will be happy to assist immediately-we want this process easy and breezy.

As a prospective buyer, it’s important that you research the product thoroughly before purchasing. There are many online forums where people can share their knowledge and experiences with different products in order to help guide your decision on what is best for yourself.

With our guide, you can find the best sti turbo upgrade available on the e-commerce market. We make use of Big Data and AI data to compile this list, so it is highly accurate.

The process of creating this content was challenging, but our team persevered through it to bring you the best possible results. We read user reviews and looked at what buyers think about each product so that your buying experience will be satisfying.

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