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exhaust noise

2K views 0 replies 1 participant last post by  scomac 
#1 ·
Hi All
New to the forum and have some questions about exhaust noise after adding a new air intake + flow -pro exhaust on a 03 6.0l.
I like the whistle but there is a lot of noise from the turbo or down pipe .
I took it to a exhaust shop and they checked it out and welded the conections (it is a 4" duel exhaust with a new 4" down pipe ) which was a pain to install the down pipe as there is not enough space :mad: .
Any way when she starts she sounds great but when i drive normal she gets a severe rumbeling noise from the engine/turbo .I read that the 03 6.0s have there problems -could i have created one or if i put the cat converter back on will this quit it down a bit .

Please help
 
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