Get all the power and quick spooling of an open downpipe, or the nice quiet sound of a stock exhaust its up to you... These valves open completely automatically, no switch to turn on, no climbing under the car to open your manual cutouts , no electric motors on hot exhaust burning up, throw it in and go from stock exhaust to race depending how far you push the pedal....Valve is fully opened at 5-7psi, you can get them to open at higher boost using a boost controller. Slip fit making welding easy. Weld this into a y-pipe, run a boost reference line to it and your done. This listing is for the valve only! Notice: Valves may have slight exhaust leak. Some customers say they do, but most say its not noticeable Buyer assumes all responsibility for local laws and regulations. These are intended for off road use only
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