Anyone tried one of these tunes?

[Coxy92]

300kw LS1 mafless mail order tune | eBay would this be good just for a mafles? Thats all im after for atm.

 

[Coxy92]

Looks like hes got good feedback and people are happy the price seems really good aswell.

 

[sporty custom]

sounds good to me go for it,,

 

[tyrefryer]

chances are they will lock the pcm in the process.
good luck to ever changing the tune or do future mods requiring a tune touchup.