I want to order the duals for my Vforce if those specs they showed(93db at 3000rpm and 5.1hp gain) are with the spark arrestors included. And am I correct that all I have to do is re-jet to 142/137, no airbox mods or air screw adjustment? I was also wondering if they would have the USFS stamp on the when I recieved them? No info on their website yet. Are these a good choice? Thanks guys.

 

V...

I spoke with Bob a couple of days ago and he didnt know when they would have the USFS approval for the spark arrestors as you know how gov't beaurocracy is, especially for a Canadian company. He did say however that if and when they receive the approval they would replace (exchange) the pieces with the stamp. Good luck in you decision. You can reach Bob at 817-366-9391.

Ken

 

Thank you, I just ordered my new pipes from Bob. I think they will be great. He also said I should gain around 7-8hp with a Prarie 650 filter and the duals. I have looked everywhere for a K&N filter for a KFX700. Has anyone else used the prarie filter for their Vforce? If so did you have to re-jet?

 

hey vforceone, I would like to know if you had to do is re-jet with the 142/137 without any air box mods? and if you don't mind what was total cost?

Thanx

 

I was told to do no air box mods and rejet to 142/137 with the stock filter. Bob said they tried airbox mods, it didn't respond well and to leave it alone. I am going to get the K&N and try 142/138. total cost was $599.99 plus shipping, he said around $30 to ship. He thinks there is some left in stock, if so mine go out tommorow.

 

whats the stock sound level ?

 

I ordered my MBRP duals today as well, could you PM me and let me know what you paid? I was told they are just being polished and I should have them next week.

I just spent the last half hour pulling wheelies in the yard at work, now my shoulder's sore. [img]i/expressions/face-icon-small-sad.gif[/img] I guess it'll probably be a couple of weeks still before I can ride, hope you guys are having fun.

 

The price I listed above is what I was told it would cost. My transaction was over the phone, factory was closed for day. I don't know how to pm you, sorry. On the MBRP spec sheet, it lists stock db's at 3000 rpm to be 91. I hope I can do that swap out for the spark arrestor USFS stamp at a later time too. I won't know till the morning they were still in stock, but he thought so. If not, another week, I really want them by next week, going riding trails nextweekend.

 

D'oh! I didn't see that.