i run an apexi n1 on my civic i love it. with silencer on sounds stock untill you open the throttle up a bit then its lovely music my friend. i dont know much about your other choice might be nice if its tunable. never had one like that. i did notice an improvement over cat back i had on before with the apexi. im not a full blown jdm fan but they have r and d on hondas for quite a while now.