Stock Exhaust with a Walker BTM I've got a nasty drone between 65 and 75 towing my trailer (heavy), Its fine unloaded. Will a turn down tip help? Any drone with the Banks or Magna Flow exhaust?
Thanks
__________________
Keith & Amanda Egan
70 Buick GS 455
87 Buick Grand National
01 Pontiac Firebird Firehawk
02 Excursion
The turn down will help a bit, but the drone is tough to get rid of. I switched to a magnaflow muffler, and got less flutter, and less drone except above 70mph!! Went to a full 4" system (3.5 DP) and it reduced it some, but not much. Ended up adding a small dynomax (12") welded ultraflo just behind the downpipe, about 2ft upstream of the main muffler, and that has dropped it a lot - maybe 50%. It's still there though [img]/ubbthreads/images/graemlins/frown.gif[/img] Turn down tip is definetly quieter than a straight one.
If you are not EGT challenged, I would stick to the stock muffler. Although it does perform much better with the full exhaust.
__________________
2002 PSD Excursion 2WD, VDO guages, PPIII, pre-pump and tank mods, ZooDad, 4" exhaustw/ Magnaflow muffler and downpipe, Bilsteins, Hellwig bar, Air Lift rear bags, monochrome SD grille and bumpers, 20" Weld Velociti 8's
I had drone that I couldn't stand with my 4" and Dynomax. Purchased a 4" straight through, 30"- 36" over all, MagnaFlow from ITP and it is as good as stock. Almost no drone when towing and it is as quiet as stock. No flutter at all. Had it bad with the Dynomax. I think it is great and so does the wife.
Jim
__________________
2001, F250 4x4, CC, Auto; Mobil 1 in transfer case&Trans.; Frantz Bypass Filter; "Hutch" fuel mods; Sonnax/Tricum mod; 4" Exhaust, 30" MagnaFlow; Attitude in A-Pillar and tranny gauge in Dash; AIS; EASE Diagnostics; Reese Slider Hitch; Fr Rotors, Cryo Treated&Slotted by ART.
I had a drone and a metal on metal vibration when I first installed my BTM. I solved the problem with a piece of flex pipe in my downpipe from www.epiflex.com
__________________
2001 Black Excursion, 4x4, XLT, PSD, LS, (EBM2), Super-Duty grill, 4" MBRP exhaust, Bilsteins, X-springs, OilGuard bypass filter, 295's, Badges, Suvlights harness, APC headlights, Weatherboots, Centramatics, Clear corners, AIC w/ITP mount, ISSPRO EVs, BTS trans, Open element intake, ATS compressor housing, Thule rack, BD Torqloc, F350 rear blocks, Randy Ellis lightbar with a couple of Lightforce 170s, Front receiver hitch, DP Tuner chip
1975 Ford Bronco, neglected since I bought the Excursion
AutoForums.com is the premier network of enthusiast-owned
enthusiast-operated automotive communities.
We operate more than 100 automotive forums where our users consult peers for shopping information and advice, and share
experiences and opinions as a community.
Linear Mode
