Originally Posted by DEV M3
What is the power difference between the street and sport? Is it worth it to get the HFC's? I plan on getting a tune...
You'll get a mild power increase and better throttle response.
The key is that the cats are located further down the exhaust stream allowing the exhaust to hit the catalysts at a higher velocity. The tune will also eliminate the CEL that you get from relocating the primary catalysts.