hey guys i just ordered my xcal2 the other day, thanks to mike for the group buy, anyway i have an 02' scab with a 4.6, it has bigger bfg 265/70R17 tires, K&N FIPK intake, flowmaster exaust with 3" tubing to the 40 series and then just a downturn tip(no tips), so i have lost backpressure and low end power, just wondering how much low end power you guys picked up with the tuning, i am really hoping the tuning will be as good as you guys say i cant wait for the tunes and i still have almost a month

 

You might be losing some low-end torque with the Flowmaster but the custom tunes are going to make huge difference in power and performance anyway. It’s been the best performance mod I’ve done

 

I have a very similar setup to yours and have tons of low end power w/ the troyer tunes. Made up for the loss of backpressure with my 40. I have 900 or so miles on the 93max tune and still smile everytime I get on it.

 

ok thanks for the replies i cant wait to get my tunes