Swtiching to smaller vaccum pipes

[lowresolution]

Guys ,
I am using fat vaccum pipes in my 4efte . Some pipes are even thick as patrol pipes :S . I am thinking of switching to smaller vaccum pipes . 4mm may be . Right now the car is mapped to 1.3 bar . Will switching to small vaccum pipes result in boost drop ? retune ?

 

[weeJohn]

No.

 

[niickk001]

Guys ,
I am using fat vaccum pipes in my 4efte . Some pipes are even thick as patrol pipes :S . I am thinking of switching to smaller vaccum pipes . 4mm may be . Right now the car is mapped to 1.3 bar . Will switching to small vaccum pipes result in boost drop ? retune ?

iv just changed my vacuum hoses to 4mm have no problems at all