I had a Forge motorsports dual piston blow off valve on my 2003 mazdaspeed protege along with the weapons r cold air intake.. It makes the fluttering noise when i release the gas while in the range of my turbo. I took the blow off valve off and put the stock one back on thinking that would fix the problem. With the stock one on the car continues to make the fluttering noise (turkey noise). This is the first time me or my dad has owned a turbo and not completely sure how they work so we dont know what is causing the noise.. Please help!! Thank you in advance!