is it's okey to straight ekzos pipe on toyota vigo withthought muffler..?

...okay straight pipe is a bad deal...not only will you be a polluter (noise and hydrocarbons) is gonna make everyone mad...especially me~

Backpressure and monitoring of exhaust pressure as it relates to proper combustion as decided by the ECU will be a "CHECK ENGINE" light all the way down....if this were an older model (without computer) you could possibly get away with this but would suggest a PROPER set-up please~

Will sound like a pulp wood truck or bumble bee on steroids.

how about on turbo diesel is it's okey...

...don't think so Fendy...it would be a disgrace....perhaps in a "Truckosaurus" rally environment...the fact that it's diesel would make everything WORSE~

ok then,what would u recommend then. .

go with stock equipment a Toyota HiLux will have plenty of aftermaket exhaust git-up pre-made delivered to your door~....do need which year tho to shop for one fer ye~

https://www.google.com/#q=Toyota+Hilux+exhaust+pipe&tbm=shop