I was wondering what is the difference between these two options. What is the sound difference?

 

I'm running the race core right now. I'm pretty sure the street core is simply a silencer/baffle that fits within the tip of the exhaust. I am extremely happy with the Jardine RT-One. Nice low rumble at idle and throaty growl at low rpm, then it screams at high rpm. Installation was pretty smoot as well, not to mention the fact that it also weighs much less than the stock system. Noticed a nice little gain in throttle response and power.

 

thanks for the info

 

How did your Jardine mount. I was going to buy one but I was told they mount crooked off to one side. I went with a Micron instead.

 

I had heard that this would be the case... but as I installed it I made a few minor adjustments after I placed the springs that hold the can to the S-pipe and it lines up just as well if not better than the stock... I'll post a picture later if I remember.