worth modding in this nanny state?

[stonedpirate]

Cheers guys.

Does anyone know if the loss of back pressure from using slipons cause major poer loss? I heard on one forum that backpressure is a thing of the past and modern engines dont need to worry about it.

I am planning to just use an exhaust tip with a baffle and ecu flash with air intake mod.

Will that kill my performance?

Need to learn more about it before i order :)

Also, does taking the cans off and running with no exhaust hurt the engine? I just want to hear what it sounds like before i commit to short tips.

Cheers