exhaust making a turbo noise

[ff_drift_lol]

what the hell's going on? it never used to do it. now when i downshift sometimes it makes a little blowoff valve noise and when i get on it it sounds like a turbo. it's 2.5 pre bent pieces mig welded no leaks that i know of full boar 2.5 chambered muffler and an apexi n1 muffler on the end. the last bend is just a sharp turn, i cut the pipe on an angle to angle the exhaust at the end afterwards. maybe it's that? i can't figure out where it's coming from

 

[YelloEye]

what the hell's going on? it never used to do it. now when i downshift sometimes it makes a little blowoff valve noise and when i get on it it sounds like a turbo. it's 2.5 pre bent pieces mig welded no leaks that i know of full boar 2.5 chambered muffler and an apexi n1 muffler on the end. the last bend is just a sharp turn, i cut the pipe on an angle to angle the exhaust at the end afterwards. maybe it's that? i can't figure out where it's coming from

Now thats odd.....shouldnt make that noise when you downshift...hell I dont even know lol

 

[Tuner923]

did you do a turbo swap and just dont remember it?

 

[They call me godly]

Well my 2500 HD does that, but its a turbo the size of a baby haha, IDK why this would be doing it. Call scooby and the gang maybe they can figure it out? haha

 

[DaveBlank]

did you do a turbo swap and just dont remember it?

maybe you have one of those turbo sounding things that you install in your exhaust..

http://www.turbowhistler.net/

 

[Hemken666]

Or maybe you have a leak. I would check by the flex pipe.

 

[CBodnar]

sure it's not the intake ?

 

[YelloEye]

what the hell's going on? it never used to do it. now when i downshift sometimes it makes a little blowoff valve noise and when i get on it it sounds like a turbo. it's 2.5 pre bent pieces mig welded no leaks that i know of full boar 2.5 chambered muffler and an apexi n1 muffler on the end. the last bend is just a sharp turn, i cut the pipe on an angle to angle the exhaust at the end afterwards. maybe it's that? i can't figure out where it's coming from

Did you recently change the exhaust and it started doing it or is there something else you changed recently?

 

[bryson87]

can u make a vid?

 

[ff_drift_lol]

it just started doing it randomly. you think a leak might cause this? i stood behind the car and had a friend rev it it sounds exactly like a turbo. it did it once when i downshifted from the afterburn it would normally pop or gurgle but this time it made a chirp like a blowoff valve. didn't do it for a week or so then it started doing it again. now it's all the time.