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Just got duel exhaust installed with magnaflo mufflers on my V6. Outside of the car sounds great, inside not so great. It was put on by a local shop. Is this pretty normal or is there something I can do. Sorry don't know a lot about this.
Thanks
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you need to have some resonators installed. That will cause the exhaust gas to reach the mufflers at slightly different times and cause the drone to be less. I need a set on mine.
I tried a set of magnaflow resonators as mufflers. The drone was horrible. Took them off the next day.
The magnaflow dual in/out in my truck drones, too, but with some shielding, it blocked a lot of the drone.
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Mike - 2005 V6 Automatic, 300+ RWHP; 12.79 1/4
Vortech supercharger (SOLD); 180*T-stat; PLX Wideband O2, VEI digital gauges, SOS pillar pod; JBA 9MM wires; Mac LT headers, high flow cats; 8.8 w/3.73s, LPW girdle, alum driveshaft, 3000rpm TC; Steeda UCA, panhard bar, brace; CHE lca's & reloc brackets; Steeda Sport springs, Tokico DSpecs. .. "Sally" is getting "balls" ...forged V8 swap in progress
haha, you think that is bad? I had a o/r setup in my 3.8 with a fully gutted interior. Now that is drone, lol. Like others have said though, go with some resonators. Magnaflow isn't known to be that loud, kindof surprised at that.
I tried a set of magnaflow resonators as mufflers. The drone was horrible. Took them off the next day.
The magnaflow dual in/out in my truck drones, too, but with some shielding, it blocked a lot of the drone.
What kind of shielding do you mean? I was thinking dynamat in the trunk and floor board might help but not sure.
Actually I used a metal shield above the muffler (this was on the truck). It defelcted a lot of the noise away/out, so interior sound material wasn't needed.
That'd be a little harder to do something like that on a stang though, but it could be done.
Interior dynamat might be your best choiuce...or a change in the setup.
__________________
Mike - 2005 V6 Automatic, 300+ RWHP; 12.79 1/4
Vortech supercharger (SOLD); 180*T-stat; PLX Wideband O2, VEI digital gauges, SOS pillar pod; JBA 9MM wires; Mac LT headers, high flow cats; 8.8 w/3.73s, LPW girdle, alum driveshaft, 3000rpm TC; Steeda UCA, panhard bar, brace; CHE lca's & reloc brackets; Steeda Sport springs, Tokico DSpecs. .. "Sally" is getting "balls" ...forged V8 swap in progress
I also just noticed that where the factory exhaust came together and went back to the one side. The shop cut it there then caped it, but there is a 2 or 3 inch branch (again caped) on the way back instead of a straight shot on the one side. Would that cause any performance problems or more drone?
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Bad exhaust drone!!
1.9 & 1.6 valves w/trickflow springs & Crane 1.7rr's, everything is ported & polished,TF stage1 cam
,BBK 351 shorty headers,o/r x-pipe,FLowmaster 40's w/tailpipes,03 Cobra front brakes, custom subframe connectors,UPR lower's & Steeda adjustable upper control arms, Cold A/C ect..
.. "Sally" is getting "balls" ...forged V8 swap in progress 
