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Subaru WRX STI from 2004-2021
or tackling winter roads
The factory inlet directs cold air from the front grill to the SF Airbox
this intercooler core helps maintain optimal intake temperatures
this flywheel is the perfect direct OEM replacement for worn or damaged units
IAG Performance Adjustable EJ20/EJ25 Timing Idler Kit YMM_2011_Impreza Subaru WRX STI from 2004-2021The IAG Performance Adjustable Timing Idler Kit is designed specifically for Subaru EJ20 and EJ25 engines where changes in long block length have occurred. Resurfacing cylinder heads or decking the block effectively shortens the engine assembly, while thicker head gaskets increase overall length. In both cases, cam timing can be shifted due to the fixed length of the timing belt. These adjustable idlers allow precise correction of cam timing,
