A SXR7 isn't going to run with F7. The 03's were the fastest but an 05 -06's aren't to be taken lightly. HP for the SXR is about 110-112, F7 is putting out around 140hp, if you port and pipe the SXR than it would be a different story, even just pipes the SXR would pick up 20-25hp but fuel mileage would go down and sound levels would go up. Do a search, there are a few things that will wake up the SXR but the F7 will still be out front.