PRODRIVE Forged 2.5L Impreza STi

Description:

Genuine Factory PRODRIVE Bugeye STi

VIN-verified PRODRIVE STi chassis – not a Prodrive-spec conversion

This is a genuine factory PRODRIVE STi, recorded as such against the VIN.
It is not a standard STi upgraded to Prodrive specification — this is the real car.

Rare by definition.
Exceptional by execution.



What makes this car truly unique

Beyond its already scarce PRODRIVE heritage, this car has been built into something that is likely one-of-one.

It is fitted with a fully forged EJ257 engine from a 2016 STi, assembled to a specification that significantly exceeds its current power output. This was not a build aimed at chasing numbers — it was designed to be fast, reliable, and genuinely usable.

Key engine highlights include:



Fully forged pistons and rods




RCM head studs




Fuji Racing 1.6mm head gaskets




Fuji Racing scraper plates and baffling




All new timing components and seals throughout





Everything is documented and recorded.

The result is an engine that feels effortless and responsive, with strong torque throughout the rev range and substantial headroom remaining should a future owner ever wish to explore it.



Condition & mileage



Chassis mileage: circa 40,000 miles




Underbody: zero corrosion




Chassis: exceptionally clean




Body: solid, straight, and rust-free





In today’s market, finding a genuine PRODRIVE STi chassis with circa 40,000 miles is exceptionally uncommon, with mileage at this level now a key deciding factor for collectors.

The car was stored in a garage for several years earlier in its life. There is some honest cosmetic wear consistent with age, but it presents very well overall — approximately 7.5/10 paintwork.
This is a car I would happily daily drive.

The interior has been professionally removed, cleaned, and refitted, and is close to immaculate.

The vehicle has been driven and drives very well. The underbody requires no work, and any previous MOT advisories or concerns have been properly rectified, with evidence available.



HPI & provenance

The vehicle has been HPI checked and is clear, and the V5C carries no salvage or damage markers.

There is a historic, registration-based insurance alert from 2003 associated with a previous plate; however, this is not VIN-matched and appears not to relate to this chassis.

All checks have been carried out in good faith, and prospective buyers are welcome and encouraged to carry out their own independent checks for complete peace of mind.



Mechanical & driving experience



5-speed WRX hatch gearbox




Fresh dyno remap by TDR (renowned Subaru specialists)




Converted to speed density for improved accuracy




Conservative, reliable calibration





The car runs and drives very well, with strong low-down torque and excellent response. Power is 300+ bhp with increased torque, and the extra displacement of the EJ257 is clearly noticeable.

The engine is significantly over-specified for its current output, prioritising longevity and reliability.

The clutch is not currently uprated enough to fully exploit the engine’s potential; however, a good quality, lightly used uprated clutch and flywheel have been sourced and are included with the car, and are suitable for the current power goals.



Key specification highlights



Genuine factory PRODRIVE STi chassis (logbook verified)




Fully forged EJ257 closed-deck engine (2016 STi)




VF49 stock-frame turbo (hatch STi)




Very large top-mount intercooler




Stainless exhaust manifolds, up-pipe & downpipe (with flexi sections)




Ninja JDM stainless exhaust system




Silicone hoses throughout




New high-pressure fuelling hoses and fuel filter




18” Gridspoke alloy wheels (refurbished in gold)




Good mid-range tyres all round




Carbon fibre rear spoiler




Subtle, tasteful exterior enhancements




Fully serviced throughout — oils, filters, plugs, gearbox and differential fluids all new





This is not your average STi — in rarity, condition, or execution.



MOT

The vehicle can be sold with a fresh MOT prior to collection, should the new owner wish.
This will be carried out at a local garage.



Sale terms (please read)



A £1,000.00 deposit is required immediately after the auction ends, payable by bank transfer




The remaining balance is to be paid in cash on collection




Collection must be made within 3 days of the auction ending




The vehicle is sold in good faith, with full transparency, and accurately described to the best of my knowledge







Final thoughts

This is an appreciating modern classic and a genuine collector’s piece, yet one that can still be properly enjoyed.
Significant sums have been invested to create what is effectively the ideal evolution of a PRODRIVE STi — fast, usable, dependable, and special.

Whoever buys this car will immediately understand what they have purchased.