Anyone on here have any experience with Boyesen “Rad Valves” for the ‘02+ ZL/ZR8EFI motors?

I understand they are thicker (like spacers) at the T.B. mount surface so I would appreciate knowing if there are any issues with fuel rail to air box interference or if the air box boots are over stretched etc.

Are they worth the price of admission or is there more “bang for the buck” with just Boyesen replacement reeds. I’m not interested >-Force.

Thanks in advance
BobCat

Why not VForce3 just out of curiosity?

Eric

I OWN A 2002 ZR 800 EFI ,SLED HAD V-FORCE REEDS ,SLED WOULD BOG AND HAD A HESITATION AT 60 MPH .REEDS DIDNT WORK FOR ME .

ranman my 800 efi used to do the same until i brought the ecu to be reprogrammed, did it last year there was no charge then, not sure about now.

YOU ARE TALKING ABOUT THE COMPUTER? I TALKED TO D@D AND BLACK MAGIC AND SPEEDWERX AND NOBODY SAID ANYTHING ABOUT THAT. I SOLD THE REEDS ALREADY ANYWAYS THANKS FOR THE INFO . ALL I GOT IS D@D CLUTCH KIT AND 192 (1080 )STUDS SLED HAS BLACK MAGIC CLUTC KIT WITCH IS CRAP PLAYED WITH THE HELIX SHIMS ALL WINTER KEPT UP SHIFTING ON ME .IHOPE D@D KIT WORKS .IVE RAN D@D CLUTCHING BEFORE ,WORKS REALLY GOOD!!!!!!!

yes had the computer reprogramed to the 03 800 specs, takes away the slight bog that i and some people had even with out the reeds, it worked for me.

if you are looking for better performance i would take the money you are going to spend on the reeds and buy a clutch kit. That will make way of a difference than the reeds will.

Where do you take the ECU to be reprogrammed?