Put the tailpipes back on and put turndowns on just before the bumper. It'll have the least amount of drone if it exits behind the truck, not under it.
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This is a discussion on Bad drone, what to do? within the Exhaust forums, part of the Performance category; Well the drone is somewhat my fault, I had my exhaust going all the way back with angled tips (flowmaster ...
Well the drone is somewhat my fault, I had my exhaust going all the way back with angled tips (flowmaster single in dual out). I did like the sound but I hated the way the tips looked so I just hacked them off and got turn downs welded (yes I know they don't look pretty). After driving it for about a month, it's driving me crazy, the drone is horrible at just about any speed besides idle. I am asking your opinions on quieting it down for a reasonable cost while maintaining the look of no tips. Although both tips coming out before the rear tire wouldn't bother me to bad. Heck I'm considering finding a stock muffler and putting a turndown on that!
Heres how it was (truck on the left)
Heres how it is now..
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2009 DMAX | EFI live
Put the tailpipes back on and put turndowns on just before the bumper. It'll have the least amount of drone if it exits behind the truck, not under it.
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95 Sierra C1500 SL
99 Suburban K1500 LT
Yup...^^^^^what he said^^^^^
Quite a bit of sound dampening comes from the tailpipes anyway, and you removed that, and with the turndowns, the sound is hitting the pavement, and bouncing right back up. Install some tucked up tail pipes, and turn them down after the bumper.
1986 K10 Suburban
350,TBI
CFM-Tech Super Sucker
Jet AFPR
TBI heads
Comp 12-388-4(260H)cam
3" Walker quietflow SS exhaust
or just get rid of that muffler cuz that is the problem
'95 GMC Z71|L05|GT4|Yukon 17s|Belltech|Purple Keys|FastChip|Hedman|Borla Pro|XtremeFI|Goodmark|Kenwood|Memphis|Ultimate TBI Mods|E Fan|
Much More to Come...
5200 lbs. at 12.4/15.9MPG
1988 GMC SOLD
99 Tahoe 2dr 2wd 5.7 Vortec, Thorley Tri-Y headers, FLT lvlV, Yank, TruTrac, K&N fipk
Yeah I was afraid of that, I just don't want to fork out the money for a new muffler. Well I suppose I could get the exhaust redone and just do turndowns before the bumper with no tips. That probably won't cost too much since I still have the hangers and stuff on there from my old setup.
2009 DMAX | EFI live
that wont break the bank, it sounds like a good plan
'95 GMC Z71|L05|GT4|Yukon 17s|Belltech|Purple Keys|FastChip|Hedman|Borla Pro|XtremeFI|Goodmark|Kenwood|Memphis|Ultimate TBI Mods|E Fan|
Much More to Come...
5200 lbs. at 12.4/15.9MPG
1988 GMC SOLD
Sounds like a plan to me. It'll definately help out.
1988 GMC 355,
Do you have any pics of your exhaust? From what I see in you sig it looks nice, specs please.
Thanks
99 Tahoe 2dr 2wd 5.7 Vortec, Thorley Tri-Y headers, FLT lvlV, Yank, TruTrac, K&N fipk
'97 Chevy Stepside, '99 BMW M Coupe, '09 Suzuki Bandit 1250
No it didn't really drone, or not nearly as bad. I just can't even think straight with the way it is now. It's like the perfect tone that matches songs sometimes. My spring break is next week so hopefully it wont cost much money to get the pipes run and I can get it done then.OP, did it drone before you chopped off the tailpipes? If not, then it's obviously not the muffler that's at fault. Replace the tails, exiting them as a couple advised right before the rear bumper, and you should be good to go
Last edited by KROHN27; 03-02-2010 at 01:54 PM.
2009 DMAX | EFI live
here we go again.
'95 GMC Z71|L05|GT4|Yukon 17s|Belltech|Purple Keys|FastChip|Hedman|Borla Pro|XtremeFI|Goodmark|Kenwood|Memphis|Ultimate TBI Mods|E Fan|
Much More to Come...
5200 lbs. at 12.4/15.9MPG
1988 GMC SOLD
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