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- Billet 0
this intercooler provided a 14 hp increase and a 30-degree drop in AITs compared to the stock STI intercooler-- for more testing details
stainless steel hardware
it helps reduce wear on transmission components while maintaining smooth gear changes
Turbine wheel inducer: 56mm
PERRIN Lightweight Alternator Pulley Blue - Fits 06-14 Subaru WRX / 07-21 STI / 06-13 Forester subaru-impreza-2008 - Billet 0The PERRIN Lightweight Alternator Pulley in blue is designed for 2006 2014 Subaru WRX, 2007 2021 STI, and 2006 2013 Forester models. This precision engineered pulley reduces rotational mass, improving engine responsiveness and efficiency. By decreasing parasitic drag on the engine, it helps enhance throttle response and can contribute to smoother power delivery. Built for durability and performance, its an ideal upgrade for enthusiasts aiming to
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US$ 55.00
