See also:

New Chassis Tuning for 2011
The Subaru Impreza WRX STI was already a highly optimized performance machine. Specific chassis tuning. Aluminum front lower L-arms reduce unsprung vehicle weight. Major chassis tuning changes inc ...

Engine
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Security indicator light
Turbo models Non-turbo models The security indicator light deters potential thieves by indicating that the vehicle is equipped with an immobilizer system. It begins flashing (approximately once ev ...