Exhaust exit location help

[Danni22]

Iv changed my mind on the location on the exhaust haha I'm now putting it out of the front bumper along the side,

Do you think that a accord type R manifold into a single 3" or 2.5" pipe ( 4 into 1 ) would be ok? Or should I go with a (4-2-1)

I'll be running a silencer, no way I couldn't not.. would you say 2.5" will retain more of the torgue??

I'm just thinking ahead for the turbo build, out the rear bumper cannot happen now, having it out of the side as it will cause to much heat in the car when the turbo is on.. Even when it's boxed in... I melted heat wrap on the old supercharged polo