Im been wanting to change mufflers as well on the HD but cant decide whether Flows 40series or another Magnaflow but I changing to go Si/Do. I wonder how the 10 series would sound?

 

Magnaflow FTW, Mine is with stock manifolds and cats and is pretty loud for stock...

 

magnaflow flows way better

 

^magnaflow and borla are the ****, no doubt about it...im thinkin bout running either since a baffle or some packing broke in my dynomax, not tryin to thread jack but how do ya think borla would sound with obx headers with ory (resonators in place of cats)? would it be clean sounding or raspy?

 

i dont think it would be raspy since you said you gonna put resonators in place of the cats

 

I've got the same problem with my 14" magnaflow, i think the packing is worn out and I want to change out to maybe a borla or a bigger magnaflow. I don't have cats and I need a DI/SO or DI/DO, any suggestions?

Do they make XR-1's in a dual in form?

 

it already has the resonators in place of cats, it was the obx kit even though it said dna on the box lol, i hope it doesnt sound raspy...im just lookin for clean and good tone, as for a DI/So i dont think ive seen an xr-1 like that to be honest, but i could be wrong, id check summit or borlas home page to see, you can always make it work though with ur own ypipe into the inlet of the muffler or vise versa

 

Count me in on this one.. im trying to figure out wich one for the 6.2l Denali Truck. We always ran FlowMasters on our Race Cars, but my daily driver im thinkin Magnalow. What do you think? Want to keep the factory 3.5 inch out the back, for the sleeper look

 

Hey guys new to this forum, but your advise is needed. Ready to get the pipes right, im having a hard time deciding also. Can anybody tell me which way i should go? Headers & Muffler, what is the best proformance combination. Thanks for your time.

 

Im about to go magnaflow my cammed 5.3 lt's no cats its making my flowmaster scream and has some serious drone.