Grams Performance Canada
Grams Performance Fuel Injectors & Components — Canada
Priced in CAD • No duties • No brokerage fees • Fast shipping across Canada
Grams Performance is a California-based fuel system components manufacturer producing high-impedance fuel injectors, fuel pressure regulators, fuel rails, and supporting components for sport compact and domestic performance applications. Their fuel injectors are used by professional tuners and serious enthusiasts who require precision fuel delivery for high-power builds running E85, methanol, or elevated boost pressures. At MyPartsGuy.ca we carry the Grams Performance lineup, all priced in Canadian dollars with no import fees or brokerage charges.
Popular Grams Performance Applications
- Honda K20 and K24 — injectors for high-power naturally aspirated and boosted builds
- Subaru WRX and STI (EJ and FA platforms) — injector upgrades for Stage 3+
- Mitsubishi Evo X (4B11T) — high-flow injectors
- Nissan 350Z and 370Z (VQ35/VQ37)
- Toyota GR Corolla and GR Supra (B48/B58)
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Frequently Asked Questions
When do I need to upgrade fuel injectors?
Fuel injectors have a maximum duty cycle — at high power or high fuel demand, OEM injectors can reach their limit and be unable to supply sufficient fuel, causing a lean condition that risks engine damage. For most sport compact platforms, injector upgrades become necessary around Stage 3 power levels (typically 400+ whp on WRX/STI, 350+ whp on K-series). Consult your tuner — they will specify the required injector sizing for your target power level and fuel type.
Do Grams injectors require injector characterization data for tuning?
Yes — Grams provides injector characterization data (flow rate, latency, and linear flow range) for their injectors that tuners use to calibrate the ECU fuel maps. This data is available from Grams and from popular tuning platforms like COBB Accessport. Always provide your tuner with the injector data sheet for your specific Grams injectors when having your car tuned.