Smoke Coming Out

[typerinside]

i have jus replace my extractors, to a good condition second hand 4-2-1 extractors, and have a brand new flexi pipe, i ask my bro to drive the my dc2r coz i want to hear the vtec kick in coz i couldnt hear in properly before with my 4 into 1 headers, anyways, everytime the vtec kicks in at 6000rpm theres white smoke coming out from the muffler what can that be?

[yourfather]

if it's a cold day, its probably condensation

only worry about smoke if it's blue / grey, which means oil.

if it's black it's fuel...

[Slow96GSR]

Does the smoke only come out after the Vtec kicks in?