Exhaust Header Up Pipe All-in-One Kit for 2002-2007 Subaru Impreza WRX/STi Sedan/Wagon 4-Door 2.0L 2.5L
Upgrading your 2002-2007 Subaru Impreza WRX headers is essential for improving engine performance and exhaust sound. Flashark's 2002 WRX headers are designed to boost horsepower and deliver a more aggressive exhaust note, whether you're driving on the track or the street.
Specifications:
Brand Name: FLASHARK
Certificate: ISO9001:2000
Application: WRX/STi Headers & Up Pipe
Material: Stainless Steel
Surface: Mirror Polish
Model: EH28015
Details:
- Made of High Quality T304 Stainless Steel Material
- Inlet/ Outlet: 1.50 in. / 2.00 in.
- O2 Sensor Insertion and Metal Gasket Included
- One-Piece Design
- TIG Welded CNC Machine Flange
- Increase High Flow Air, Instantly Gain 10 -15 Hp. / Tq.
Why Choose FLASHARK Exhaust Header?
Upgrade your engine's performance with Flashark exhaust headers and let your engine breathe more freely. Designed to maximize airflow, these headers increase horsepower and torque, giving your engine the power it deserves.
- Dyno-tested for Performance: These headers are dyno-tested to ensure significant gains in horsepower and torque. By improving exhaust flow, they help lower operating temperatures, allowing more air to enter the engine for enhanced performance.
- Easy Installation: The 2002-2007 WRX headers feature a direct bolt-on design, making installation quick and hassle-free, with no modifications required.
- Built to Last: These headers are designed as an exact replacement for your factory exhaust header, ensuring a perfect fit and long-lasting durability.
Quality assurance:
1. Each item has been factory tested and meets or exceeds OEM specifications.
2. If you are not satisfied with the product or the product has quality problems, you can contact us at any time, we will provide you with a satisfactory answer and solve the after-sales problem for you.
Package Includes:
1 X Set of Header Exhaust System,
1 X Up Pipe
Gasket(s) and Bolt(s) as shown in the Picture above
Exhaust Header vs. Manifold: Why Choose Flashark Headers for Your 2002-2006 WRX/STi?
When upgrading the exhaust system on your 2002-2006 Subaru Impreza WRX/STi, choosing between an exhaust header and a manifold is an important decision. The main differences lie in the material, design, and performance. Exhaust headers are made from lighter, thinner stainless steel, while exhaust manifolds are typically made from thicker iron. Headers are also longer, which helps to eliminate back pressure—a common issue created by manifolds.
By giving each cylinder its own tube, Flashark headers allow exhaust gases to exit more efficiently, resulting in improved airflow, higher horsepower, and better torque. Unlike manifolds, which restrict performance due to back pressure, the Flashark WRX/STi headers enhance engine breathing, leading to a noticeable performance gain. Whether you're driving a 2002 WRX, 2003 WRX, or any other model from 2002-2006, these headers are designed as a direct bolt-on solution, making installation quick and hassle-free.
For those seeking maximum performance and sound from their WRX/STi engines, Flashark exhaust headers are the superior choice over traditional exhaust manifolds.
Flashark All-in-One Kits
Often, after purchasing the Exhaust Header Up Pipe All in One Kit for 2002-2006 Subaru Impreza WRX/STi Sedan/Wagon 4-Door 2.0L 2.5L, customers will also purchase other items. Come on, check out Flashark's all-in-one kits and modify your car to your heart's content!
Fitment & Compatibility
- 2002-2007 Subaru Impreza WRX / WRX STI | 2.0L EJ20 / 2.5L EJ25 DOHC Turbo (excl. below listed models)
- 2002 Impreza WRX 4-Door Sedan 2.0L
- 2003 Impreza WRX (all 2.0L variants)
- 2005 Impreza WRX STI 4-Door Sedan 2.5L
- 2006 Impreza WRX 2.5L Turbo
- Non-WRX/STI trims, non-DOHC Turbo engine configurations, models outside 2002-2007 year range, engine-swapped or heavily modified vehicles
Flashark 2002-2007 Subaru WRX/STI High-Performance Exhaust Header & Up-Pipe Upgrade FAQ
Q1: Will this exhaust kit perfectly fit my EJ205 engine? Does it include 2006 wrx headers?
A1: Absolutely! This kit is built as the ultimate performance upgrade for your ej205 headers, precision-engineered to perfectly match 2.0L EJ20 and 2.5L EJ25 DOHC turbocharged engines. Whether you are looking for 2002 wrx headers, 2003 wrx headers, 2004 wrx headers, or 2006 wrx headers, this kit offers a seamless, direct bolt-on installation experience that enthusiasts love.
Q2: What are the performance advantages over the factory ej205 exhaust manifold?
A2: The factory 02 wrx exhaust manifold (as well as later years' wrx exhaust manifold) is constructed from heavy cast iron with rough inner walls, creating severe exhaust back pressure that chokes your engine's potential. Our upgraded subaru wrx exhaust manifold is crafted from high-quality T304 aviation-grade stainless steel with CNC-machined flanges. The ultra-smooth inner piping significantly increases exhaust gas velocity and lowers under-hood temperatures, letting your turbo breathe freely.
Q3: Does this kit include the up-pipe? Why is it crucial to replace my factory 2002 wrx up pipe?
A3: Yes, this is a complete combo that includes a high-flow catless up-pipe! As experienced tuning engineers, we highly recommend replacing your factory 2002 subaru wrx up pipe, 2003 wrx up pipe, or 04 wrx up pipe. The OEM up-pipe contains a pre-catalytic converter that tends to degrade, break apart, and send shrapnel directly into your turbocharger, causing catastrophic failure. Swapping to our catless pipe eliminates this ticking time bomb while drastically reducing turbo lag.
Q4: Are these unequal length subaru exhaust headers? Will I keep the classic Subaru rumble?
A4: You definitely will! As die-hard Subaru enthusiasts, we know the "rumble" is the soul of any WRX/STI. This is a classic Unequal Length (UEL) design. These subaru impreza exhaust headers not only boost horsepower and exhaust flow but also perfectly preserve and aggressively amplify that iconic, menacing Subaru exhaust note.
Q5: Do you offer a complete all-in-one upgrade solution for the entire exhaust system?
A5: Yes, we do! For drivers looking to maximize their gains in one go, we highly recommend our ultimate combo: the "2002-2006 subaru impreza wrx/sti headers & up pipe 2.0l/2.5l, exhaust header+catback+downpipe up-pipe" package. As a professional subaru headers & down pipes shop, we provide this comprehensive subaru impreza wrx/sti exhaust header catback downpipe up-pipe all-in solution to unlock the absolute limit of your EJ engine.
Q6: Can I install this system on a naturally aspirated model as subaru impreza 25 i headers?
A6: No, you cannot. These subaru headers are strictly engineered for turbocharged EJ engines (impreza wrx sti models). The piping routing and flange dimensions do not fit naturally aspirated vehicles. Please do not attempt to force-install this product as subaru impreza 25 i headers, as it is completely incompatible.
Q7: How much horsepower gain can I expect after installing these subaru sti headers?
A7: By upgrading to this high-flow header and up-pipe combo, you can instantly gain 10-15 wheel horsepower (HP) and corresponding torque without sacrificing low-end grunt. For maximum, safe results—especially when modifying the full 2006-2007 wrx exhaust—we strongly advise getting a professional ECU tune to optimize the air-fuel ratio and throttle response.
Q8: Will this header bolt up directly to my 2002 wrx stock exhaust system?
A8: Absolutely. It features precisely CNC-machined flanges designed to mate seamlessly with your 2002 wrx stock exhaust factory downpipe. It is also fully compatible with most aftermarket downpipe and catback setups if you decide to further upgrade your 2004 wrx exhaust or 2005 wrx exhaust system in the future.
Q9: Do I need a 2002 wrx exhaust diagram to install this? Are all gaskets included?
A9: While referencing a 2002 wrx exhaust diagram can be helpful for beginners, our 02 wrx headers feature a straightforward Direct Bolt-on design. The package comes completely ready to install, including the exhaust header, up-pipe, pre-welded O2 sensor bungs, and all necessary high-strength metal gaskets and bolts. We do recommend professional installation to ensure the slip joints are properly sealed with exhaust gasket maker.
Q10: Is this product durable enough for track days when upgrading my 2006 sti exhaust?
A10: It's built for the track! Whether you need a solid upgrade for daily street driving or robust 2006 sti parts to withstand heavy track abuse, this system delivers. The TIG-welded, one-piece design effectively manages high Exhaust Gas Temperatures (EGT), making it a highly reliable and durable enhancement for your 2006 sti exhaust or 06 wrx exhaust setup.
Q11: Will this fix the common exhaust leak issue on my 2003 subaru wrx exhaust?
A11: It is the perfect permanent fix. The aging factory cast iron manifolds are notorious for cracking and leaking over time. By replacing it with our heavy-duty stainless steel wrx header, you not only completely eliminate the annoying leak issues common in the 2003 subaru wrx exhaust, but you also achieve a massive leap in overall performance.
Q12: Why should I choose Flashark's subaru wrx headers over other brands?
A12: We aren't just manufacturers; we are performance enthusiasts. Flashark's subaru wrx headers and our entire line of 2006 subaru impreza exhaust components pass strict ISO9001:2000 quality control. From the beautiful mirror polish finish to the dyno-proven horsepower gains, this high-conversion kit offers unmatched value, transforming your driving experience right out of the box.