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2018 Subaru WRX STI Build Thread - Photo 1 of 3
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2018 Subaru WRX STI Build Thread - Photo 1 of 3
1 / 3
2018 Subaru WRX STI Build Thread - Photo 1 of 3

2018 Subaru WRX STI

Updated

The Story

Bought with the intention to have a street legal dedicated track car. I have a friend who had a 997 GT3 RS who regularly tracked his car at Portland International Raceway. I really like that car, but did not feel that I could afford one. My intention was to build a car that could beat it around that track for a fraction of the price. In my mind that Porsche (at the time, 2018-2020) was worth $200k. I figured I could build something for around $50k... $100k later I did it! I beat his time of 1:25.3 with a 1:23.8, I even got to pass him (point by) in the same session.

Wheels & Tires

Square Fitment

Wheels - 18x9.5 +35mm

Tires - 255/40

Modifications

Suspension

  • MCS 2-way coilovers Suspension Arms & Components

Performance

  • AP Racing Brakes
  • Mishimoto Cooling
  • IAG 900 long block, Blouch 3.0 XTR, 1000 cc ID injectors, Radium high volume dual fuel pump Surge Tank, Killer B oil kit, EWG, Cobb tuned, Invidia Q300 exhaust, TGV Delete, ETS top mount Intercooler, tuned on E85 flex via Cobb, etc.

Stuart Welker

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