Best exhaust cutouts?

[sabumaru]

Quick and easy answer i deduct here is :
On road you are "ok"
Offroad you will just waste the money


So what destoys them so fast ?
Dirt and dust ? Or rocks?
Can't they be shielded?
Or have the exuater mounted remotely with steel cabbles moving the flap
Or is the flap the problem?

 

[NickPic83]

The motor doesn't last and/or the flap doesn't seal

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[LekRap]

Yeah, thanks for the heads up. So do you still have the Y pipe on then? So you use it? Can just keeping the Y pipe on hurt anything? I feel like the exhaust would try to go down the y and get backed up? Like back pressure or anything?

 

[NickPic83]

Had them on my last truck a lifted GMC with 6.0 and my buddy with a silvy ss has them also. They all failed. I took the y pipes out and my buddy left them in with no issues

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[ccbruin]

Yea, I dont think having the Y pipes there would have any noticeable effects