Originally Posted by S2000_Europe
I have the SPT on a 15+ STI with Killer bee header, stock intake with HKS Funnel, Cobb catted DP and I do not have drone, the sound is deeper.
I amconsidering the SINGLE Q300, weight savings and some hp, but I could not find anyone with one installed. According to Invidia the noise level is 93 db. Any feedbacl would be nice.
BTW everytime I start the STI the alarm of my neighbour's M4 triggers
why not just get the Cobb catback?? I love my Cobb turbo back on my 17sti.. sounds deep and doesn't drone