Personal preference, but this is one of the cleanest sounding motors I've heard that works for track and street. You just need to imagine it with an insulated interior and a "normal" sounding gear box.
I believe Brian is running 3" Borla's that side exit in front of the left rear wheel opening. Check his build thread it shows the system.
umm .... HALF the great sounds emanating from that car are from said transmission.
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2004 NASA AIX Mustang LS2 #14
1964 Lincoln Continental
2014 4 tap Keezer
I wouldnt buy spintech. after having there mufflers rust from inside out in 5 years, they told me that was normal life for there stuff. That didnt sit well with me since it was my daily driver. I switched to magnaflow and will buy that for my camaro as well.