Jill Of All Trades: Rachel Ellingsen鈥檚 All-Rounder WRX STI

Micky Slinger Vehicle Features

Photography by Micky Slinger & Adam Gordon

There鈥檚 something to be said for a car that can do it all, and that鈥檚 definitely been a driving force behind the lasting legacy that is Subaru鈥檚 WRX STI.

Over the years, we鈥檝e been treated to witnessing the STI name dominate both on- and off-road, as well as be transformed into some impressive creations through the show circuit and beyond. There鈥檚 something even more to be said for someone who can take such a potent platform, and make it excel in all avenues without sacrificing any functionality. We think that Rachel Ellingsen has done an outstanding job with her WRX STI, and we鈥檙e not alone - hundreds of people voted her through to the final round of 2018鈥檚 Tuner Battlegrounds Championship.

Ellingsen鈥檚 fascination with cars started at a young age, watching her father work away at rebuilding a motor, while she sat on a pile of spare tires and handed him a wrench here and there between explanations of different parts and tools and how they work. Fast forward to 2010 and Ellingsen had finally acquired a car to channel that inherited passion into: a 2000 Acura Integra GSR.

鈥淟ittle did I know, this car was going to be my gateway drug to a never-ending addiction of financial havoc,鈥� she laughs, thinking back.

Her first test would come only three weeks later, when a small electrical fire started in the engine bay that left her with two options: fix it or make it faster. Naturally, a K-swap was in order, and thanks to an extra push from her husband, Gabe, who owns a pretty sweet 1,200-wheel-horsepower S2000, the Integra soon had a fully-built, all-motor K20/K24. The engine was assembled and installed by the couple in their garage, with a few friends stopping by to help out with the odd bit. The Integra is still a work in progress, so while it鈥檚 fine and dandy to have a money pit, you need a car you can actually drive. That鈥檚 where the STI comes in.

鈥淚 really hadn鈥檛 ever ventured into the Subaru world until Gabe, my husband, told me about an STI for sale one day,鈥� Ellingsen explains. 鈥淩ight away, I was hooked, even though I had never been inside one and literally knew nothing about them.鈥�

Looking for more information about the Subaru she just bought, Ellingsen joined a Facebook group called 鈥淥klahoma Subies鈥� to pick up some tips and tricks from local like-minded owners. This is where she realized the mistake that she had just made. A post on the group from an excited new owner of a red 2015 WRX STI made her realize what was wrong: that STI was the one she wanted, not the used one she had just picked up! Not long afterwards, her very own Lighting Red STI showed up at the dealership, and was ready to be molded into Ellingsen鈥檚 vision.

鈥淥riginally, I had purchased the car with the goals of just having bolt-ons, coils, and wheels, so it would be a nice-sounding daily,鈥� she recalls. 鈥淓very time I added something, I would find out that if I just upgraded one other corresponding item, it would significantly enhance the whole performance of my car, and here we are!鈥�

This build philosophy of 鈥渏ust one more part鈥� eventually led to the tasteful mixture of aesthetically pleasing and functional components we were treated to at SEMA in Las Vegas. Wrapped in Avery Dennison鈥檚 Roaring Thunder color-shifting vinyl and treated to a host of carbon fiber goodies, like the bare Seibon front fenders and hood, plus the APR Performance canards and 67-inch GTC-300 wing, the Subaru projects an air of performance that it can absolutely back up. Ellingsen鈥檚 favorite modification, her Air Lift Performance air suspension system, makes that all possible.

鈥淢y favorite thing about my car is the combination of being able to go to the track, have a ton of fun making passes, and when I'm done, pressing that air-out button and being able to look great,鈥� she says, proudly. 鈥淚 love being able to disprove people about air ride not being a trackable suspension.鈥�

Swapping over her Work Durandals to some Gram Lights 57DRs on Advan Sport tires, Ellingsen then airs up to a functional height, runs some passes at the track, and when she鈥檚 done, she then airs out and heads home. She also isn鈥檛 stock under the hood, which ironically enough came about in the same sort of way her Integra did. After a solid day of sending it, a ringland failure on cylinder four (#SubaruProblems) put a pause on her fun and left her with two choices: fix it or make it faster. Due to her history with issues like this, we already know the choice she made.

The STI鈥檚 EJ257 boxer was rebuilt with a Supertech valvetrain, CP 10:1 pistons, Manley H-beams, and a much juicier fuel system to support some new boost, plus compatibility with E85. One of Forced Performance鈥檚 Zero ball bearing turbos was planted on the engine, the top-mount intercooler was swapped for a front-mount Mishimoto offering, and through the COBB AccessPort V3 and running E85, the Subaru puts out a dyno鈥檇 530 horsepower and 537 lb-ft of torque - 225 more horses and 246 more lb-ft than a WRX STI rolling off the showroom floor.

With such a complete build and a solid backing from her club, Team Diverse, Ellingsen entered her car in the Tuner Battlegrounds Championship, thinking she could do fairly well. It wasn鈥檛 until Team Diverse鈥檚 Oklahoma chapter was screaming and cheering across a local pizza joint while watching the final point standings live stream that she realized just how far she鈥檇 come.

鈥淎fter the final announcement, I kept reminding my husband, 鈥楬oly crap, we鈥檙e going to SEMA!鈥� Ellingsen chuckles. 鈥淧ulling up to SEMA and seeing the transport truck that picked up my car put it all into perspective. Watching the car roll out and into the Las Vegas air, it was like I heard my brain say, 鈥楬ere we go!鈥欌€�

Ellingsen and her husband hit the ground running every day of the competition, completing virtually every one of the Editor鈥檚 Challenge obstacles we could throw at them, and Ellingsen even came home with the fastest NASCAR lap around Las Vegas Motor Speedway at Richard Petty鈥檚 Driving Experience, courtesy of McLeod Racing. Unfortunately, her social following and pull couldn鈥檛 quite match her competitor鈥檚, causing him to pull ahead and win, but Ellingsen was totally positive about the outcome.

鈥淣aturally, I was bummed,鈥� she says. 鈥淚 had prepared myself earlier in the day and reminded myself that I had just spent a week in Vegas though, so no matter who won, we both had a pretty awesome time.鈥�

The momentum that Ellingsen carried throughout the competition carried right through to when her car arrived back home, as she鈥檚 already been stockpiling parts and has arranged for a completely new look, featuring a new wrap, custom-finished Brada three-piece wheels, and even a pair of one-off headlights from On Point Customs, while hoping to pump up her performance numbers even more as well. Whether it鈥檚 on the street, the track, or posted up at the show, you can bet that Ellingsen鈥檚 STI will be dominating and looking its best while doing so for the foreseeable future.

Rachel Ellingen and her 2015 Subaru WRX STI is featured in 乐播传媒 #153. Click to order.

Go to next page for specs and photos.

ESSENTIALS

Vehicle: 2015 Subaru WRX STI
Owner: Rachel Ellingsen
Location: Yukon, OK
Built by: Misfire Motorsports, FSM Auto Restyling, On Point Customs, Oklahoma Customs
Engine: Subaru EJ257 2.5L turbocharged H4
Horsepower: 530 hp
Torque: 537 lb-ft
Club Affiliation: Team Diverse
Facebook:
Instagram:

ENGINE

Supertech valvetrain
Forced Performance Zero turbocharger
Mishimoto (front-mount intercooler, hoses, air intake)
Turbosmart blow-off valve
Precision Turbo wastegate
Aeromotive (billet stealth fuel rails, fuel pressure regulator)
Full Blown 340-lph fuel pumps (2)
Bosch 2,000cc fuel injectors
Okada ignition coils
Manley H-beams
CP (10:1 pistons, piston rings)
JE (head gasket, other gaskets)
ARP hardware
COBB AccessPort V3 tuner
Zeitronix Content Analyzer E85 fuel monitor

EXHAUST

Invidia (N1 dual-exit exhaust system, down-pipe)
HKS equal-length header
Nameless Performance up-pipe

DRIVETRAIN

Competition Clutch (Street Series twin-disc clutch, flywheel)

WHEELS / TIRES / BRAKES

Work Durandal DD5.2 daily/show wheels - 18x9.5 +38 (f/r)
Gram Lights 57DR track wheels - 18x9.5 +38 (f/r)
Federal SS595 daily/show tires - 225/35 R18 (f/r)
Yokohama Advan Sport A/S track tires - 245/45 R18 (f/r)
Brembo brake kit - 4-piston calipers (f), 2-piston calipers (r)

CHASSIS / SUSPENSION

Air Lift Performance full air suspension system
Whiteline sway bars
SPC lower rear adjustable control arms

EXTERIOR

SPT (lip kit, vortex generator)
Seibon carbon fiber (OEM-style front fenders, CS-style hood)
APR Performance carbon fiber (brake duct fog light covers, canards, front splitter, GTC-300 67-inch wing)
ESC Fabrication V2 aggressive rear diffuser
On Point Customs modified headlights
Subispeed V2 taillights
OLM carbon fiber door handles
Avery Dennison Roaring Thunder vinyl wrap

INTERIOR

AEM UEGO AFR gauge
Zeitronix ECA gauge
Bride Zeta III bucket seats (2)
Cipher Auto 5-point harnesses (2)

MOBILE ELECTRONICS

Sony XAV-68BT touchscreen double-DIN head unit
Digital Designs (1,200-watt amplifier, 10-inch 1512A loaded subwoofer, CXS6x9 midrange speakers, AT28 wideband tweeters)

SPONSORS