LzrBlu2003MSP
Member
- :
- 2003.5 MazdaSpeed
I haven't had the bypass valve on there since I put the hard pipes on. I am guessing the reason you are asking this is because I have a video with the turkey and without. The first video was only rev'd up to about 4000 rpms and the second video was closer to 6000 rpms. If you keep your revs around 4000 you only hear the bov.dominoy2k1 said:so you took off the bpv?