Who has a Bender 4x4 Pipe?

[stein700sx]

I purchase a good used Bender 4x4 pipe for my Viper from a member last summer (09). He did not have the instructions (not hard to install). What I am wondering is, does Bender suggest any jetting changes? Right now the jetting is stock and the motor is trail ported.
Have not gone out to test very much. One short ride and thats it. Got an overrev right now that I need to correct. Still waiting for snow and now the little we have is melting.

 

[MySX700R]

Good luck getting a reply from Bender. They have ignored my e-mails so far. Try calling them direct.

 

[viperking]

from what ive been told the bender 4x4 pipe and can require no jetting changes

 

[Ding]

Guilty . . .

No jetting changes were suggested by Bender.

It does seem to flow better and generate a little more power, which results in the overrev. A little more weight in the primary can help. I run Heavy Hitters and a roller secondary with 8 tooth drivers, so can't offer any suggestions on how much weight and where.

 

[stein700sx]

Thanks. I know I got to get some wieght in the tips. Right now its still 500 over. Waitin for snow to correct that problem and do some tests to check the jetting.