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Originally Posted by S14DB
Mufflers work by sound pressure absobtion/dissapation. N1 cans are thin and can't absorb/manage alot of pressure. A larger can will absorb/manage alot more pressure. Also, the 80mm has 33% more surface area in the core to absorb more pressure, which makes the 80mm quieter than the 60mm. The reason people say the 80mm is louder is that the bigger can makes the tone lower than the 60mm and the ear perceives lower tones at the same dBL as louder than the higher tone.
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Ahhh I see says the blind man.
Good shit.
I was searching around for regular canister exhausts that I like and found the Blitz Realize and the ex-mag. I couldn't find any clips of the Realize but I found one of the ex-mag on an n/a KA and honestly, it sounds pretty close to the Hi-power 65mm exhaust that i've planned on buying. I like it. Might be too loud for some at higher RPMs but I really don't get on my car unless on the highway so I really don't care.
The only concern of mine so far is that i've read that overtime the ex-mag gets louder on a n/a engine. Any validity to this?