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Cover art for Rear-Engine Subaru STI Turbo Swap

Rear-Engine Subaru STI Turbo Swap

Smeedia builds a turbocharged flat-six rear-engine STI for under Porsche prices.

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Nov 13, 2026

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Rear-Engine Subaru STI Turbo Swap

Smeedia builds a turbocharged flat-six rear-engine STI for under Porsche prices.

In brief

Smeedia builds a turbocharged flat-six rear-engine STI for under Porsche prices. Smeedia completed a rear-engine turbo flat-six swap in an STI, creating a custom vehicle that mimics a Porsche 911 Turbo without the cost. Originally reported by The Drive.

Rear-Engine Swap Project

Rear-engine, flat-six Subaru STI

Smeedia is building a rear-engine turbo flat-six Subaru STI to mimic a Porsche 911 Turbo without the cost.

Engine Swap Details

The EG33 flat-six engine is turbocharged and installed in the STI's trunk with custom exhaust brackets.

Project Challenges

The swap requires custom chassis tubing, a new cooling system, and a harness before the engine can start.

At a glance

Smeedia completed a rear-engine turbo flat-six swap in an STI, creating a custom vehicle that mimics a Porsche 911 Turbo without the cost.

Read the original on The Drive

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