Hey guys , just a quick write up. I ordered a jag madness tune recently and wanted to share my experience. This is by no means a paid response. I have a 2015 xf 3.0 and wanted more power and the speed limiter removed. I have done a lot of research and finally decided on the jag madness tune. The claims for the level 1 are 420hp and 410tq. I can’t attest to the numbers but the car is a totally different animal now. Pulls harder in every gear and rpm range now. The mid range is absolutely phenomenal.
The process was super easy and straight forward (I’m no tech expert) I had a couple questions prior to buying and Chad from Madness was there every step. His response to emails was very timely and straight forward. I’ve had the tune for a few days now and I am very pleased. The more I drive the happier I am now. I liked my car before but now I love it !! I know there are several options out there. I’m not independently wealthy and the payment option with affirm helped me out a lot. I will definitely be saving up and going with the level 3 tune in the near future. Thank you Chad

 

Update. I’ve had the tune almost 2 weeks. Absolutely no problems at all. Runs phenomenal. As a comparison I dog walked my buddies 2019 Challenger RT 5.7 over the weekend. From every speed it pulled away and kept going. The dead stop run was embarrassing for him 🤣. It’s definitely a sleeper now.

 

Nice ,wait till you get the pulley

 

I ordered a roar pedal throttle controller a few weeks ago and it’s fantastic. If you don’t like the mushy pedal of the xf I highly recommend one. I’m ordering a e85 tune from jag madness real soon and will update with my review. I’m still loving the level 1 tune that I got a few months ago. It’s been flawless.

 

"One step beyond"

 

Well , I ended up not getting the e85 tune because the tune is geared towards dedicated e85 and the fuel around me is listed as 51-85%. I however have been adding several gallons of flex fuel at each fill up. I have noticed no adverse affects and the car is more responsive. To me it seems to run better. I also recently put a Mina gallery performance intake on. WOW !! I can’t necessarily notice any power increase but the supercharger whine is much more pronounced and LOUD. Puts a smile on my face every time I mash the throttle. 😁(think mini hellcat)

 

I continue to modify my Jag to my liking. I did a muffler delete last night and Wow. I know some don’t enjoy a loud car and that’s fine. I however do. It sounds like a V8 at idle and very aggressive at throttle. I am also running about 25/75 flex to 93 fuel mix. It saves a few bucks at fill up and the car absolutely loves it.