Catback exhaust Power Loss?

[f350powerstroke]

i installed a 4 catback from mbrp for some reason the truck rides sluggish and slight mpg loss... its an 07

[TEXCRAWLER]

That sounds weird. I put a MBRP 4" turbo back straight pipe on my 04 6.0 and it runs like a spotted a$$ ape! Wished I could help. I'm sure your still under warranty, take it in and have the dealer run a dignosis on it and see if you may have a bad injector.

[f350powerstroke]

Originally Posted by TEXCRAWLER

That sounds weird. I put a MBRP 4" turbo back straight pipe on my 04 6.0 and it runs like a spotted a$$ ape! Wished I could help. I'm sure your still under warranty, take it in and have the dealer run a dignosis on it and see if you may have a bad injector.

i SERIOUSLY dought it is an injector, truck has 20 k miles,stock, dont know if loss of back pressure makes it run weird or what. although i do notice less heat emitting from the tail pipe, even touched it after 20 min of driving it wasn't scorching hot like the stock exhaust. gonna talk to my shop and see what is up...

[bargecap]

Originally Posted by f350powerstroke

i SERIOUSLY dought it is an injector, truck has 20 k miles,stock, dont know if loss of back pressure makes it run weird or what. although i do notice less heat emitting from the tail pipe, even touched it after 20 min of driving it wasn't scorching hot like the stock exhaust. gonna talk to my shop and see what is up...

have you checked/changed your fuel filters ??

[f350powerstroke]

Originally Posted by bargecap

have you checked/changed your fuel filters ??

ive changed everything a week prior ...

[HOTWHEELS34]

That does sound weird, when I put a cat- back on mine it spooled up faster and felt quicker.

[f350powerstroke]

dunno, maybe the cpu is figuring out the backpressure loss

felt a lot better after i ripped it on the highway 80 mph today and deff. a lot less heat from the exhaust area

[Tikal]

backpressure isn't a problem with any motor that has a turbo on it


Maybe your truck just don't know how to act... Ya know on a cool, brisk morning when you walk outside and it takes your breath? Shoot I dunno, I'm a Seben Tree man

[f350powerstroke]

Originally Posted by Tikal

backpressure isn't a problem with any motor that has a turbo on it


Maybe your truck just don't know how to act... Ya know on a cool, brisk morning when you walk outside and it takes your breath? Shoot I dunno, I'm a Seben Tree man

lol , btw nice stacks.