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I am also interested in how loud will that Oreca system be especially because it is de-cat...Is group A louder than group N (i mean because of the diameter A-63, N-55)?
im not 100% on the decibel rating but there are very good chances that a de cat exhaust system with no centre resonator will be too loud. IIRC they will be around the 100 decibel mark and IIRC most tracks have a limit of about 95 decibels.
I am also interested in how loud will that Oreca system be especially because it is de-cat...Is group A louder than group N (i mean because of the diameter A-63, N-55)?