Agree with you on that... used to drive a Lancer GT for the past 4 years and the rubberband effect is very pronounce.
I ended up changing to lightweight crank pulley and installing throttle controller to try to get rid of the feeling.
Now driving a normal 6-speedo Sportage and feels the pickup is damn sluggish....

Bro,

Sportage also only have immobilizer....
Naza-approved alarm and glass-sensor installation will cost you another RM1k...
Check with your SA whether Naza already have approved alarm for K5 or not...

The Service Advisor at Kia Glenmarie told me got 2 reported cases of alarm installation that caused some short circuit to their Sportage.
1 is due to water seepage from window tinting kena the alarm wire and another is installation of front sensor and alarm system somehow screw up the meter panel, and the owner has to pay >3k.
Both installed the so-called approved alarm system from their respective SA/dealer but the SA told me Naza HQ still haven't give green light from alarm installation.