BBK off-road x pipe and 40 series flows

[Brian12281]

anyone running the bbk off road x pipe with the flowmaster 40 series american thunder?? i have it on my 01 gt and makes a hell of a nasty rattle past 2,000 rpms and when the rpm's drop. it didnt do this until i put the x-pipe on and it did the same thing on my buddy's 03 gt????

 

[2002BLGT]

this is common with your combo , its just the nature of it , off road H , or catted x will eliminate it some , h pipe doesnt have this noise

 

[Brian12281]

are you running the flows with the h pipe? and if just switching to an OFF-Road h pipe will fix it??

 

[2002BLGT]

im running full length bbks with catted x and flows , but if i get an off road later im getting the H . I have some rasp but not bad because the cats cut down on it some . but its still there .