Ok, so after listening to many sound clips, I like the sound of the HKS exhaust. The look is not exactly my cup of tea, but the sound is what I'm going for.

Sound clip:
[ame="http://www.youtube.com/watch?v=2mSYtX5GT-M&feature=related"]YouTube - Mazdaspeed 3 HKS CBE[/ame]
[ame="http://www.youtube.com/watch?v=dmv5Zi_xMOA"]YouTube - HKS Mazdaspeed3 Hi-Power Cat Back Exhaust Sound Clip[/ame]

I've been pricing it and came across this site: RSA Performance
http://www.rsaperformance.com/hks-hi-power-exhaust-mazda-3--mazdaspeed-2007.html

My question is why in the world is it so cheap compared to other sites? Has anyone ordered parts from this site. Is this site legit? Is this the wrong model of exhaust?

ive never ordered from that site i usually try to stick with street unit,cp-e,cobb,horsepowerfreaks for websites and when it comes ot money i try not to really mess around with it if something works....i personally think the cobb exhaust is the best sounding on the speed3 but to me its your car should get what you want on it and what honestly makes you happy

I don't want a downpipe and according to SU, the COBB cbe is discontinued. There is a cobb cbe, but there aren't any to listen to. All the cobb exhaust are turbo back.

I don't think that picture is of an exhaust that will fit on an MS3. There aren't sharp enough bends where it turns toward the driver side and then goes over the axle. I don't know. If it's that much cheaper than anywhere else there has to be a reason.