I,ve run SV650 and SV1000 without snorkel And having tank front raised 18mm and even after pissing rain, never an issue.
The airbox had a water trap and I never saw any in it. In pissing rain I tended to slow right down anyway! so rain wasnt gonna blow into the 20mm gap behind the steering head, then get into the airbox and somehow drain through the oiled K&N...
The only benefit "performance wise" was that the SV1000 induction roar under accelleration and airbox resonance at 3000rpm was spine tingling
Lets call it an Aural enhancement! ( I could never find any dyno charts that proved airbox mod = HP.)
My advice is just take the snorkle off, if you like the new sound,leave it off. If you're not comfortable, refit it.
FWIW I was initially scared about water getting in as we tour and cant predict the weather, so at one time I drilled two 50mm (2 ") holes in the rubber front of the airbox and ducted air using convoluted aluminium hose to form two 90degree air ducts.Basically a large diametre snorkle.This was to avoid rain getting in. To be honest it was a waste of time.
I reckon the worst case scenario without a snorkle will be you,ll see more dust at the leading edge of the filter as less will settle in the snorkle.
i,ll also comment that before I sold my SV's I rode them with stock air filters and snorkles refitted and tanks lowered back to standard- and both bikes felt GREAT!, a little quieter, and somehow smoother..
I would never refit a stock muffler though!
Paul and Dixie and our V2
DL1000A 2015. SW-Motec crash bars and skid plate,Givi Airflo screen,Givi rear Hugger,Factory low seat,Barkbusters with Storm guards,Factory Tank Protector, Factory centre stand,RadGuard Radiator Guard,home made top box adaptor plate with poverty top box,Factory hard panniers,Zumo390LM,TKC70's,windshield lowered 50mm with custom mounting plates,motopressor tyre inflator,Virgins breath in the tyres,Barrett exhaust,AWESOME rider and pillion.