bypass valve

Hey everyone I’m brand new to the forum and had a few problems going on. I just got my EB about a month ago and wanted to achieve that blow off sound without spending too much so i bought the c&l bypass adapter, on install my brother dropped it and it broke so when i drove it it sounded like it...

I have a Magnaflow catback for a 2018+ Mustang GT for sale. Its brand new in the original box. The box is damaged but everything is intact. The part number is 19535. I have included a picture of the box as per the rules but I know its not a great picture so I included the original sites ad. This...

good day to all; I am selling these below items: -Procharger bypass valve + pipe elbow $185 (great condition) -Procharger pulley 8 ribs 4.00 ZPE Griptech $150 (as new! less than 500 miles) -Procharger pulley 8 ribs 4.00 $95 (great...

Is it normal for the muffler bypass valves to open during throttle tip-in after adding a supercharger? I'm estimating that the valves open up at about 25% throttle and close immediately after I back off. As you know, the muffler bypass valve goes into quiet mode automatically while in 6th...