Turbo D16

Anyone have personal experience with one of these? I just welded in the 3" moroso spiral flow muffler. Exhaust is as follows: 2.5" dp, 3" exhaust with 3" hi flow cat, 3" moroso spiral flow, then 3" Magnaflo straight through muffler.

At initial start up the car is louder than before. I drove it around the block and the car is MUCH LOUDER than it was before up to about 4K rpm. After about 4K rpm the car is quieter. I figure ok it must be an exhaust leak. I replaced a shoddy looking gasket, checked the others, which looked perfect and drove again. SAME RESULT. I put the car up on 4 jack stands and went under neath the car while it was running and felt, looked, listened for leaks and can NOT find an exhaust leak anywhere. Not even a pinhole one.

WTF gives? is this thing known for amplifying slower traveling exhaust gas? All i was looking to do was quiete down some of the top end, not make the cruising around town unbearably loud! lol

-Luke

sounds like the resonant frequency was changed

can you elaborate?

-Luke

the frequency at which the sound resonates? not sure i can elaborate any more haha

i understand that i meant in the context of my issue. you think it's enough to cause that much db gain?

-Luke

I hate bashing but i am honestly very unhappy with Moroso at this point. I spoke with technical support and basically they said there's no way possible for it to make a car louder and they offered no help or anything. I felt like they don't care about their customers or their products. So now i have a peice of junk 50 dollar part that i now need to cut off my car just so i can weld back in the original peice of pipe.

awesome. giant waste of money and time.

-Luke

did you put it in backwards?

nope

-Luke

placement with-in an exhaust system can also play an effect on exhaust sound.