Any thoughts or opinions on the Z1 Motorsports exhaust? Any comparison to the AFE tekada or HKS? I'm looking for a quality exhaust that's not crazy loud. Any opinions are appreciated..

 

Just my opinion from when i did my exhaust, I listened to videos of various brands of exhaust, chose the ones i thought sounded the best, then researched those brands by searching on the forum to see what others thought of the quality of the exhaust brands i chose.
Finally settled on the Invidia Gemini, has a deep sound and even with HFC's it doesnt drone haevily or rasp at higher RPMs.