Just got a EVS Tunning HFC in 63.5. I currently have the stock CAT and Rebel Medallion exhaust. The sound is quieter than I thought so I'm going to see what sound/hp improvements can be gained from the HFC. If it's to loud I can always go back to stock.
I wanted to go with a Berk in the same size but the Berk site had issues with my address, internet stores didn't have it in stock and my local shop couldn't get one either. Not sure if there is a production issue. I also have read that the Berk and EVS Tunning use the same core from Magnaflow.

Anyways, I plan on installing tomorrow and hoping to see/hear/feel good results.

Anyone else have experience with EVS Tunning?

 

Installed the EVS HFC this morning. Super easy since all of the rusted bolts were replaced when I did the exhaust a few weeks ago.
To my surprise, the HFC didn't make the Revel Medallion that much louder and not really any raspyness at WOT.

For my own notes and hopefully to help anyone with the same plan here are quick unscientific comparisons I did using a sound DB meter on my phone taken at 1 feet.

Revel Medallion with stock cat
Cold start up = 75.8db
Engine rev to 3k = 77.3db
Warm engine = 70.1db

Revel Medallion with EVS tunning 63.5 HFC
Cold start up = 77.1db
Engine rev to 3k = 78.1db
Warm engine = 70.6db

Overall, happy with the sound and feels a little more responsive.

 

Where did you purchase the cat?

Did the cat introduce any drone while cruising?

 

I got the cat from Yum sports. You can email them tavis@yumesports.com

The HFC didn't introduce anything to noticeable and drone is almost nonexistent with the exhaust I have. With the top down drone is not noticeable at all at cruising speed.