S-Car Go: A WRX That’s Truly “Built Not Bought”

S-Car Go: A WRX That’s Truly “Built Not Bought”

You know that feeling you get when you’ve done something DIY? It may have taken significantly longer than projected and made more of a mess than you initially thought, but that mixed feeling of pride, accomplishment, and satisfaction is enough to make you get a little addicted to doing it yourself. That feeling, plus the respect that’s earned in the enthusiast community through working on your own projects, explains why so many learn through wrenching themselves. Our friend, Eric Guerette, is a shining example of this.

Built by none other than himself and obsessed with constantly improving his car, Guerette was able to propel himself through our Tuner Battlegrounds Championship competition in 2016, eventually landing himself and his WRX in Vegas for the final showdown at SEMA. It was a respectful and humble, yet hard-fought battle against Ger Reyes’ S2000, and Guerette ultimately came home with title of runner-up, but that didn’t discourage him one bit. Since coming home from Vegas, he’s been touring the U.S. and Canada, picking up hardware from shows and events all over. He even showed up the day after SEMA ended to Subie Invasion, flaring his launch control over the exhaust note of the Mighty Car Mods boys’ “Subarute” creation for a noise level award.

03 Eric Guerette 2002 Subaru Impreza WRX Tuner Battlegrounds PASMAG

Showing up for the Tuner Battlegrounds Championship, Guerette’s WRX was finished in a Black Cherry paint by Sublime Auto, coating a JDM STI body kit and WRC-style front and rear widebody fenders from RPG Carbon. The engine bay is also coated in color – light green shaved bay walls house a de-stroked 2.35-liter EJ engine adorned with pink components, most notably the modified intake manifold from a 2011 Forester.

The built EJ has been ported and polished and packed with performance goodies, like Brian Crower Stage 2 camshafts, Manley H-beam connecting rods and pistons, and a full Supertech Inconel valvetrain. The head of the EJ has been swapped with one from a 2003 WRX and the crankshaft has been sourced from a Japanese EJ20, which has been nitrile coated. It’s a great mix of OEM and aftermarket to make a unique engine even more so.

16 Eric Guerette 2002 Subaru Impreza WRX Tuner Battlegrounds PASMAG

Power doesn’t stop there either. The turbo system on the stock WRX has been overhauled to utilize a front-mount intercooler instead of the top-mount synonymous with hood-scooped Subarus, and the snail has been upgraded to a Garrett GTX3582R to really make this “S-car” go (because Subaru starts with “S” and escargot is a French play on snail because this car is from French Canada and it's turbo'd – never mind). To crank things up even further, a CRY02 nitrous spray kit has been thrown into the mix and is used right on time, junior.

Transferring this power to the ground is an ACT clutch and flywheel spinning away inside a transmission from one of the most potent factory-offered Subarus with the longest name ever: STI Version 8 Spec C Type RA.

22 Eric Guerette 2002 Subaru Impreza WRX Tuner Battlegrounds PASMAG

“Cusco and Perrin inspire me with all of their experience on the platform,” says Guerette, which is definitely apparent due to his use of the names throughout the WRX. From header to tips is all Perrin, and a good chunk of the suspension is Cucso-branded, like the Zero 2 coilovers, sway bars, and rear control arms. The front control arms and strut bars were all donated by an STI.

27 Eric Guerette 2002 Subaru Impreza WRX Tuner Battlegrounds PASMAG

Inside, Guerette straps into Sparco Pro 2000 racing seats by way of NRG harnesses, and oversees Autometer gauges residing in RPG Carbon gauge pods. In the back seat sits a car seat for his young daughter since this show car is still a daily driver. We think that makes Guerette a pretty cool dad.

28 Eric Guerette 2002 Subaru Impreza WRX Tuner Battlegrounds PASMAG

After SEMA, the focus was on rounding out the build, and Guerette obviously thought some changes were needed out back. A new carbon fiber “Spec-1” duckbill trunk from Racing Performance Motorsports swings up to reveal recent audio addition in the trunk space. Poking out from the hardwood flooring is a 12-inch, 1,000-watt, dual two-ohm SPLMAX subwoofer and just above it, mounted to the green-painted metal of the trunk wall, is a 1,200-watt monoblock and 400-watt four-channel amp, the latter of which powers the four 6.5-inch SRX two-way component speakers in the cabin – all from Kaption Audio.

07 Eric Guerette 2002 Subaru Impreza WRX Tuner Battlegrounds PASMAG

It’s a venerable laundry list of modifications that’s made even more impressive when you realize that besides some paint and port and polishing, every other piece of this Subaru puzzle has been laid down and made fit by Guerette. Even more astonishing, this was his very first Subaru ever. Guerette has a love for off-road driving and rally cars, owning three Jeeps and a rally-built ’95 Civic Coupe that he wrecked during a snowstorm while doing some spirited trail driving. “I owned three Jeeps before selling them to get my Impreza,” he recalls. “I was a fan of rally cars, and this was the first turbo Impreza to come to Canada. I was originally going to build a racecar for lapping and time attack.”

We’re glad that the WRX ended up being a car for the show circuit. That way, Guerette is able to show his handiwork to a vast audience, and as someone who’s more than qualified to run a “Built Not Bought” sticker on his ride, we’re glad he gets the chance to.“Always do it for yourself and not for others,” Guerette proudly says. “So many things have changed in my life from when I started. I'm very proud to have built this car myself. Always believe in yourself; it’s the best thing I learned from this project.”

30 Eric Guerette 2002 Subaru Impreza WRX Tuner Battlegrounds PASMAG

Photography by Gabriel Sevigny (@gsevigny)


Owner: Eric Guerette
Vehicle: 2002 Subaru Impreza WRX
Location Quebec City, QC
Engine Subaru EJ257 2.35L turbocharged H-4
Horsepower 600 hp
Torque 550 lb-ft


Facebook: /eric.guerette
Instagram: @marzocchiwrx


  • Subaru (2003 WRX head, 2011 Forester modified intake manifold, nitrile-coated JDM EJ20 crankshaft)
  • Custom (port & polish, front-mount intercooler, reverse intake conversion, throttle body)
  • Mishimoto (3-row radiator, silicone hoses)
  • Perrin (radiator stay kit, intercooler)
  • Supertech Inconel valvetrain
  • Garrett GTX3582R turbocharger
  • Tial (blow-off valve, wastegate)
  • CRY02 nitrous spray kit
  • AEM (air filter, fuel pump)
  • Agency Power fuel rail
  • Tomei fuel pressure regulator
  • Deatschwerks 1000cc fuel injectors
  • Brian Crower (Stage 2 camshafts, valve springs, titanium retainers)
  • NGK BKR7E spark plugs
  • Weapon-R power steering reservoir tank
  • Manley (H-beam connecting rods, pistons)
  • ARP head studs
  • W-Tech custom tune


  • Perrin full exhaust system


  • ACT (clutch, flywheel)
• Subaru STI Version 8 Spec C Type RA (transmission, axles)
  • Driveshaftshop driveshaft


  • Niche Versaille custom 3-piece wheels – 19x10.5 +32 (f), 19x10.5 +22 (r)
  • Toyo Proxes T1S tires – 285/30 R19 (f/r)
  • Rotora Street Challenge big brake kit – 4-piston calipers (f/r), 2-piece 16-inch drilled & slotted rotors (f/r)
  • Brembo 2-piston e-brake calipers (r)
  • Custom hydro hand brake kit
  • GMB Hydralique braided brake lines


  • Cusco (Zero 2 coilovers, sway bars, control arms (r))
  • Whiteline urethane bushings
  • Subaru STI (titanium strut bar (f), strut bar (r), control arms (f))


  • Subaru JDM STI body kit
  • RPG Carbon WRC widebody
  • RPM carbon fiber Spec-1 trunk
  • MT Custom Lights headlights
  • Sublime Auto Black Cherry paintjob


  • Elite Tuner shift knob
  • Sparco (steering wheel, Pro 2000 racing seats)
  • Autometer gauges
  • RPG Carbon carbon fiber gauge pods
  • NRG Innovations (harnesses, harness bar)
  • Subaru JDM STI floor mats


  • Kaption Audio (1,200-watt monoblock amplifier, 4-channel 400-watt amplifier, 12-inch 1,000-watt dual 2-ohm SPLMAX subwoofer, 6.5-inch SRX 2-way component speakers (4), front fuse holder, distribution blocks)
  • Custom sealed enclosure
  • Optima battery


  • SilverWax
  • Sublime Auto
  • Kaption Audio
  • Toyo Tires
  • MT Custom Lights
  • RPG Carbon
  • Racing Performance Motorsports
  • Niche Road Wheels
  • Auto Acoustique
  • NRG Innovations
  • Tiretred


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