HKS Downpipe Bellmouth Catless Subaru WRX / STI 2008-2014

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The HKS Downpipe is considered to be one of the more cost effective means of improving both horsepower, and torque. The design eliminates the restrictions found on the factory downpipe which means the driver will have increased spool, better throttle response, increased boost pressure, and more top end power. The HKS Downpipe is a direct replacement, and has been crafted from 304 stainless steel. The exhaust features dual resonators along with 75mm piping which will provide an aggressive sound without too much drone. Please note that because this downpipe removes the factory emissions control devices, it is recommended for off-road use only. Also, will only work with manual transmissions.


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