A last question about exhaust...

Hello again...

i have a last question about exhaust...

i am thinking about doing the modification by Blackoctagon member

http://ift.tt/1s9Dv6F



Since my backbox is quite new i would like to try it...



Has anyone tried or heard of that mod in terms of performance (and sound but I dont mind about loud sound I should say )



Is it worth doing it..?

And if so, should i also proceed with trriming the downpipe/manifold burrs also..? (found in another article from Blackoctagon)



Regards again :)

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