First of all $500 is TOO MUCH to pay for an Xcal.
There are several options where you can purchase an Xcal and pay about $100 less,
and all of these vendors support MM.net and our Marauders, or course.
Wes Chain ( http://www.innovativeinterceptors.com )
Lidio Iacobelli ( http://www.alternativeauto.com )
Dennis Reinhart ( http://www.reinhartautomotive.com )
There pricing is competetive, and lots of members have posted nothing but excellent experiences with them.
I have ordered an Xcal from Wes Chain, with Lidio's tune on it.
The Xcal gave me some problems, and proved to be a defective unit.
I offered Lidio to upgrade my Exchange Xcal for an Xcal2 and I would cover the difference in cost.
Lidio and Wes were both as helpful as humanly possible,and my Xcal2 should be arriving soon.
As far as which tune you should get,
it's all in what you are expecting to get from your Marauder,
understanding the Marauder's limitations and possibilities,
and then understanding how Dennis and Lidio tune for the Marauder.
After you've considered each one of your choices,
then you can apply the one, that you feel, will fit your goal the best.
Then come back here and tell us what you chose and how much you like it !
Pete...
2k04 BLACK Mercury Marauder 300A #810 of 3223
DOB 10/31/2003
DOP 1/2/2004
2k19 AGATE FORD Edge ST with Performance Brakes
DOB 12/11/2018
DOP 6/19/2019
Water Wetter, K&N AirCharger/Drycharger, SS Inserts,
SilverStar 9007SU, WeatherTech WeatherFlectors, Steering Wheel Badge,
AutoMeter Gauges (Oil Press, Voltmeter, and Trans Oil Temp),
ASC 840 VSS Sunroof, Kenwood KFC-C6879ie x4, COBRA Fender Badges,
Z&M Rear Control Arms, FORD GT Coil Covers,
Gorilla Lock Lugs all around, Decklid Designs Trunk Lid Liner,
SCT Xcalibrator2 (Innovative Interceptors) w/Lidio's (Alternative Automotive) Marauder 3.55 tuning,
4R75W by Fred Brown's Performance Transmission, tuned to match Lidio's tune,
DG Motorsports Carbon Fiber Radiator Cover, Zack's Badgeless Grille,
Accel 140034-8 Coil Packs, Granatelli Motorsports Coil-On-Plug wires
Even though I walk through the valley of the shadow of rice,
I will fear no turbo for displacement is with me.