Proven Components is a shorter list of GR Corolla parts chosen by our team from our full catalog, including our own LIMIT+1 parts, EcuTek tuning through LIMIT+1 x Boosted Performance Tuning and the LIMIT+1 GR Corolla Power Packages. It is a good place to start if you would rather not research every option yourself.

Start with the parts that match how you use the car. For more power on the street, a downpipe, an intake and a custom EcuTek tune are the core, and we also offer LIMIT+1 GR Corolla Power Packages 1 to 3. Add cooling such as an oil cooler or intercooler before chasing more power.

If the car will see track time, brake pads, high temperature brake fluid and an alignment come first, followed by suspension. Building in that order means each part supports the last instead of exposing a new limit.

Yes. Tell us your vehicle, your goals, and what is already installed, and we will put together a parts list that works as a system instead of a pile of individual upgrades. Order matters as much as part selection, and sequencing a build correctly avoids buying the same part twice. Contact us before you order if you want a second opinion on a plan.

Orders are processed within one to five business days, excluding weekends, holidays, pre-orders, and backordered items. Orders over $199 ship free within the continental United States by ground service, excluding freight items. We also ship to Canada, Australia, and non-continental US destinations, where import duties and taxes are the customer's responsibility.