I got my new MagnaFlow today. Had them cut out the factory exhaust and replace it with a new muffler (single 3" in/out). Come to find out the 3" fits the head pipe but have 2.5" in the back. There is a huge drone inside the cab. Has anyone done this? Do you have the same drone?
I am thinking about replacing the tail pipe with a 3" to see if it sounds any better. Overall, the outside sounds good.
'08 Silverado Ext Cab 4x4, 5.3L, 3.73... K&N FIPK, Bully Dog, GM Performance cat-back exhaust, Removed rear block (leveled), KMC Badlands 18x9 with Cooper Zeon 285/60
which magnaflow you get mine has hardly any drone?
i got the long one though, 24" i think
I got part number #12289, 24" long.
'08 Silverado Ext Cab 4x4, 5.3L, 3.73... K&N FIPK, Bully Dog, GM Performance cat-back exhaust, Removed rear block (leveled), KMC Badlands 18x9 with Cooper Zeon 285/60
get the 3" tailpipe
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
hmmm, you are the first one ive heard of with excessive drone with it....do you have it dumped?
if you have any drone it would most likely have something to do with the funnel effect of having 3" of gas going into the muffler and only 2.5" of pipe to exit. The gases would have to compress inside the muffler to fit out the 2.5" tailpipe. That is probably what is causing the drone if you have the tailpipe installed.
See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
no drone for me, i dont even like robots
Name: Mark,
God created turbo lag so nitrous trucks could have a chance.
http://www.ls1truck.com/forums/my-ga...tml#post274877
I have a drone but I dont have any pipe coming off my magnaflow, just got a muffler hanging. Oh and I got the short one too.. lol
2007 NBS silverado, DJM 4"-6" drop, Magnaflow muffler, Volant cold air, Richmond 4.10 gears, SLP underdrive pulley, Diablosport P.O.S. tuner. TURBO SOON TO COME!
Only when idling , nothing like a Magnaflow .
6.0L , Pacesetter LT , dual 3" , dumped before rear end .
Now what is a tune again?
Comp Cam 54-412-11 , Int:265, 212, .522 , Exh: 271, 218, .529 , LSA 114 , Longtube , CAI (Vararam) , TransGo HD2 shift kit , tuned by me with EFILive
Posting Permissions
Reply With Quote
