what reflash sofware to choose.

Hi i have a vw golf gti which i have been wanting to reflash for a while but i am confused to which software to choose as there are couple of options like APR, 034, cobb, and unitronic it would be really helpful to know which tune provides the most power and torque and which tune is more reliable, how each and every tune feels in a certain way eg. if its more responsive or less responsive. or what is the most common option out there and the best value for money. thanks.

what year?

As a life long VAG guy, they are all shit.

But, if you have tunezilla locally down under, go with them.

I have a MK7R as a daily and I am just using tunerpro to tune my simos ecu on my own, but I do have ED for my DSg flash and UM for my Haldex flash.

its a 2008 mk5 gti ive never heard of tunezilla mainly because i live australia here there are only a handful of brands that people go with and thats unitronic,apr (most common) , 034 and cobb and is it worth it to reflash the dsg as well?

COBB gives you ease of delivery, gauges, datalogging since you get a handheld unit, and they have custom features like launch control, burnout mode, flat foot shifting and others. With DSG, they offer DSG tuning as well.

COBB always errs on the side of reliability compared to others, then allows you to get a custom tune from a tuner with their pro software if you want something more risky.

They post dyno graphs so you can look at their % gains vs. others.

When considering options, see which ones offer custom tuning capability in case what you buy off the shelf doesn't turn out to be exactly as you want it.