Unleashing the Beast: The Enduring Appeal of a Modified 2015 Subaru WRX
Alright, let's talk about the 2015 Subaru WRX modified. If you've ever owned one, or even just ridden in one, you know there's something special about that car. It was the start of a whole new chapter for the WRX, ditching the old EJ motor for the snazzy new FA20DIT, and boy, did it shake things up. For many of us, the 2015 model isn't just a car; it's a canvas, a blank slate just begging for some serious personalization and performance upgrades. It's a legend in the making, and when you start digging into the aftermarket, that legend really comes to life.
Why the 2015 WRX is a Modder's Dream
So, what makes the 2015 WRX such a fantastic platform for modification? Well, for starters, it's got that new-for-the-WRX FA20DIT engine. This direct-injected, twin-scroll turbocharged 2.0-liter boxer is a beast right out of the box, offering 268 horsepower and 258 lb-ft of torque. But here's the kicker: it's incredibly receptive to tuning and aftermarket parts. Plus, you still get Subaru's legendary Symmetrical All-Wheel Drive, which means incredible grip and confidence in just about any condition.
Beyond the engine and AWD, the VA chassis itself is a huge step up in rigidity and refinement compared to previous generations. It feels planted, responsive, and frankly, it just wants to be driven hard. Combine all that with a truly massive aftermarket support system – seriously, you can find parts for just about anything you want to do – and you've got a recipe for an incredibly rewarding modification journey. It's a car that gives you a fantastic foundation to build on, whether you're chasing horsepower, track times, or just a truly unique daily driver.
The Modification Journey: Where to Begin?
When you first get your hands on a 2015 WRX, it's like unlocking a new video game level. You're excited, and the possibilities feel endless. Most folks usually start with a few key areas, and it's easy to see why.
Performance: Unlocking More Power
Let's be honest, the first thing many of us think about is more power. The FA20DIT is thirsty for it.
- Intake and Exhaust: These are often step one. A quality aftermarket intake lets the turbo breathe better, and a cat-back exhaust system not only sounds fantastic (that boxer rumble!) but also helps with exhaust flow. Many will eventually upgrade to a J-pipe (or downpipe, if you're outside the US market regulations) for even greater gains, though this definitely requires a tune.
- Tuning – The Absolute Must: Seriously, I can't stress this enough: any significant power modification on a 2015 WRX requires a proper tune. Whether it's an Accessport with an off-the-shelf (OTS) map, an E-tune (remote custom tune), or ideally, a Protune on a dyno by a reputable tuner, this is non-negotiable. Without it, you're risking your engine's health and longevity. The FA20DIT is strong, but it needs to be told how to run optimally with new parts.
- Intercooler: The stock top-mount intercooler (TMIC) can get heat-soaked pretty quickly, especially if you're pushing more boost. Upgrading to a larger, more efficient TMIC or even a front-mount intercooler (FMIC) helps keep intake air temperatures down, leading to more consistent power.
- Fueling and Turbo Upgrades: Once you're past the initial "Stage 2" modifications, you might look into upgrading your fuel pump, injectors, or even the turbocharger itself. This is where things get serious, potentially pushing into the 400+ horsepower range, and often leads to considering built engine internals for long-term reliability.
Handling: Sticking to the Road
All that power is great, but you need to be able to use it! The 2015 WRX already handles well, but there's so much room for improvement.
- Suspension: Lowering springs are a popular choice for a more aggressive stance and improved center of gravity. However, many enthusiasts eventually move to coilovers, which offer adjustable ride height, damping, and often improved rebound control, transforming the car's handling dynamics.
- Sway Bars and Bracing: Upgraded sway bars (front and rear) significantly reduce body roll, making the car feel flatter through corners. Adding strut tower braces and other chassis bracing can further stiffen the chassis, leading to a more precise feel.
- Bushings: Replacing soft rubber bushings with stiffer polyurethane or even solid options can dramatically tighten up the steering and suspension response, making the car feel much more direct and connected.
Aesthetics: Making It Your Own
Let's not forget about making your 2015 WRX look as good as it performs!
- Wheels and Tires: This is probably the most impactful aesthetic mod, and it also affects performance. A fresh set of lightweight wheels in a wider fitment, wrapped in sticky performance tires, completely changes the car's stance and grip.
- Aero and Body Kits: Lips, side skirts, diffusers, and spoilers (like the iconic STI wing, or a sleek duckbill) can give the car a much more aggressive and sporty appearance. Some even serve a functional purpose, improving aerodynamics at higher speeds.
- Lighting and Details: Smoked taillights, LED headlight upgrades, custom grilles, or even subtle badging changes can personalize your WRX without breaking the bank.
Interior Comfort and Tech
The inside of your WRX is where you spend your time, so making it comfortable and functional is key.
- Seats: For track enthusiasts, racing bucket seats offer much better bolstering and support. For daily drivers, maybe just a nicer set of upholstered seats or some ergonomic adjustments.
- Gauges: Essential for monitoring engine health when pushing power. A-pillar or dashboard mounted gauges for boost, air-fuel ratio (AFR), and oil temperature/pressure are common and incredibly useful.
- Shift Knob: A heavier, aftermarket shift knob can improve the shifting feel, making it more precise and satisfying.
Important Considerations: Mod Smart, Not Hard
Before you dive headfirst into the world of modifications, there are a few things to keep in mind.
- Budget Wisely: Mods add up fast. Have a plan, prioritize, and don't overextend yourself. It's better to buy quality parts once than cheap parts multiple times.
- Reliability vs. Power: There's always a trade-off. While the FA20DIT is robust, pushing extreme power levels will inevitably put more stress on the engine and drivetrain components. Be prepared for potential maintenance and know your limits.
- Purpose: What do you want your 2015 WRX to be? A daily driver, a weekend warrior, a track monster, or a show car? Your purpose should dictate your mod choices. You don't want a full roll cage and race seats if you're just commuting.
- Reputable Shops and Tuners: Do your research! A good tuner and installer are worth their weight in gold. Don't let someone inexperienced mess with your pride and joy.
The Journey Continues
I remember my buddy, Mike, picked up a 2015 WRX back in '16. He started with just an Accessport and a cat-back, and he was absolutely grinning ear-to-ear. But then, as it often happens, he got the bug. Next came coilovers, then a bigger TMIC, and eventually, a custom tune pushing well over 300 horsepower to the wheels. He transformed that car from a quick, fun sedan into a serious performance machine that still drove great on the street. That's the beauty of the 2015 WRX modified; it's a car that truly grows with you.
In the end, modifying a 2015 Subaru WRX isn't just about bolting on parts; it's about crafting an extension of yourself. It's a journey of learning, wrenching, and experiencing your car in a whole new way. With its strong foundation, incredible aftermarket support, and undeniable character, the 2015 WRX truly stands out as one of the best platforms for enthusiasts looking to unleash a little bit more beast from their ride. It's an investment in smiles per gallon, and honestly, you won't regret a single moment of it.