How much did a 2005 Subaru STi weigh

Checked on January 26, 2026
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Executive summary

The most commonly reported curb weight for the 2005 Subaru Impreza WRX STI is about 3,263 pounds, a figure repeated in enthusiast databases and spec compilations [1] [2], but published manufacturer and third‑party listings vary — some general Impreza entries list base curb weights near 3,140 lb while Canadian Subaru materials show a different kilogram figure that does not align with the 3,263 lb number [3] [4]. The discrepancy appears driven by differing model/trim designations, measurement conventions and market specs; available reporting does not provide a single definitive global curb‑weight table for every 2005 STI variant [1] [5].

1. The commonly cited figure: roughly 3,263 pounds

Multiple technical summaries and community compilations identify a 2005 WRX STI curb weight in the low‑3,000s, with 3,263 lb appearing repeatedly in chassis spec sheets and enthusiast resources as the weight most associated with the 2005 STI sedan/wagon GD‑chassis [1] [2], and forum discussions among owners repeatedly reference that same number when comparing 2005 and 2006 model years [6].

2. Official and mainstream listings: some variation exists

Mainstream auto databases and manufacturer PDFs present numbers that can differ from the 3,263‑lb value: aggregated vehicle comparison sites list base Impreza curb weights around 3,140 lb (a figure that likely refers to non‑STI trims) [3], while Subaru Canada’s 2005 WRX STi document lists a “curb weight” value in kilograms that appears inconsistent with the 3,263‑lb figure and suggests market‑specific specification differences [4]. These divergent entries reflect that not every published spec sheet isolates the WRX STI sedan’s curb weight consistently across markets or trims [3] [4].

3. Why numbers diverge: trim, market and measurement differences

Reporting indicates several legitimate reasons for variation: curb weight depends on body style (sedan vs wagon), transmission, optional equipment and the market‑specific configuration, and some sources also conflate curb weight with gross axle or gross vehicle weights when quoting figures (forum threads and spec pages highlight confusion over gross vs curb listings) [7] [6]. Enthusiast threads point out a spike in listed weight for the 2006 model year versus 2005, underscoring how small equipment or regulatory changes between model years can show up in public spec tables [6] [7].

4. Sources and reliability: manufacturer docs vs third‑party compilations

Manufacturer or national dealer PDFs (for example Subaru Canada) are typically the most authoritative for their market but may use metric units or include specific equipment packages that complicate direct pound‑for‑pound comparisons [4]. Independent spec aggregators and enthusiast sites synthesize those documents and sometimes converge on the 3,263‑lb figure for the STI [1] [2], while broad vehicle comparison pages that cover the entire Impreza range may present lower “base” numbers that don’t represent the WRX STI’s heavier performance hardware [3] [5].

5. Practical reading: what to report as the 2005 STI’s weight

Given the convergence of multiple specialist sources and the recurring use of the number in owner communities, reporting the 2005 Subaru Impreza WRX STI curb weight as approximately 3,263 pounds is defensible and reflects the common specification cited for the GD‑chassis STI [1] [2]; however, it must be noted that other published figures exist depending on market documentation and whether one is looking at a base Impreza or a specific STI trim [3] [4]. The available material does not resolve every discrepancy between markets or equipment levels, so readers seeking an authoritative per‑VIN curb weight should consult the specific vehicle’s build sheet or a manufacturer/dealer record for that market [4] [1].

Want to dive deeper?
How did curb weight change between the 2005 and 2006 Subaru WRX STI and why?
What is the curb weight of the 2005 Subaru WRX STI wagon vs the sedan?
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