Hello ordered online and arrived the other day Installed noticed little increase in response to the throttle

# 100% Brand New, Never Been Used or Installed
# Made of High Quality T304 Stainless Steel Material
# TIG Welded CNC Machine Flange
# 4-2-1 Design, Two Sensor Hole bung
# 1.75" Inlet, 2" Outlet
# Increase High Flow Air, Gain 10~15 Hp. / Tq.
# Direct bolt-on installation, require NO modification
cost $140 plus postage
the rest is still stock finish at later date
and bike filters to the twin carbs later also
If you like my work please feel free to give a PQ point thanks
p.s I've noticed when my car is rolling at around 70km's when I accelerate a little a cloud of smoke will come out but never when i floor it from 0km's maybe a piston ring?
Cheers