sir, with all due respects, car's compression is absolutely perfect, having a straight 2.5" inch piping with 1.75" custom made headers. no resonator. had 4 exhausts, 2 on each side but having only 1 now. loudness is just for satisfaction as i use this corolla as a weekend car only which is pretty much popular in fsd. and used to be the loudest machine in faisalabad.. just searching for having same sound from 1 exhaust.. and obviously, thanks for your advice 

