Stage‑1 tuning transforms a Civic Type R with basic bolt‑on upgrades and a software tune.
Typical stage‑1 modifications include a freer‑flowing intake, high‑flow downpipe and cat‑back exhaust, and an ECU reflash to optimise the fuel and timing maps.
Expect gains of 30‑50 horsepower depending on fuel quality and dyno conditions. A good ECU tune will smooth out turbo lag and improve midrange torque.
Budget considerations: a quality intake costs around $300–$500, a downpipe and exhaust can cost $1,000–$1,500, and a professional tune may add $600–$1,000. Don’t forget a pre‑ and post‑tune dyno session to verify results.
Always check your vehicle’s warranty terms and emissions regulations before modifying. Stage‑1 upgrades are reversible but may impact factory warranty coverage.