Car is a bit loud - thoughts to reduce drone
06-29-2012, 10:19 AM
#31
Drifting
I've got a similar problem on my 928.
Yeah it sounds good -- but it's so loud my fillings rattle.
M
Yeah it sounds good -- but it's so loud my fillings rattle.
M
06-29-2012, 11:01 AM
#32
Rennlist Member
After a week or so of driving, my observations (compared to a Magnaflow) show this to be an excellent solution for drone and loudness without compromising the overall sound of the car. At cruise and part throttle the car is relatively quiet with no intrusive drone observed at highway speeds at all. However, it opens right up under hard acceleration. The sound is not quite as raw as the Magnaflow, especially at idle where it is more muted. I guess this is to be expected as the Dynomax is a bit larger and appears to have more sound suppression materials (thought it is straight through the casing is a bit larger).
So far my only disappointment is with the quality of the finish on muffler. The stainless looks like aluminized steel (I guess I am used to the polished Magnoflow). And for $95 I really cannot complain.
So far my only disappointment is with the quality of the finish on muffler. The stainless looks like aluminized steel (I guess I am used to the polished Magnoflow). And for $95 I really cannot complain.
11-24-2012, 12:26 PM
#34
Race Director
Any updates? Any issues with rattling?
My Fabspeed/SFR 3" exhaust is just too loud..even with the cat installed. To rectify this I'm thinking of buying a Dynomax VT (with coupon it's $63 at Advance Auto today) and installing in place of the cat/test pipe section of the exhaust, upstream of the rear muffler. Anyone see an issue with this? I'm not terribly concerned about losing a few HP, traction is an issue anyway.. I just want a quiet(er) car
My Fabspeed/SFR 3" exhaust is just too loud..even with the cat installed. To rectify this I'm thinking of buying a Dynomax VT (with coupon it's $63 at Advance Auto today) and installing in place of the cat/test pipe section of the exhaust, upstream of the rear muffler. Anyone see an issue with this? I'm not terribly concerned about losing a few HP, traction is an issue anyway.. I just want a quiet(er) car
01-22-2014, 04:03 AM
#36
Rennlist Member
I'm running the LR 4in exhaust with the Magnaflow. Whenever I make the long 2 hour trek to the other track...I cure the loud exhaust problem with soft foam earplugs. 
