Standard exhaust fitted with number 1 baffle removed, I have sold the Magnaflows.
I could improve the 0-60 on a dry road as I couldn't use much power of the line as there was no grip, 40-70 had a gear change but there was so much traffic about that may also not be representative.
I will do them again on a quiet dry road (if there is such a thing in the uk) and then again after fitting Garage 56 exhausts for comparison.
Got more power with the Magnaflows though.