View Full Version : Straight Pipes

10-25-2009, 6:12 PM
Does any body know where to get custom straight pipes made for a 06 bonnie?

10-26-2009, 7:36 AM
Just take the mufflers off. :D

10-26-2009, 11:15 AM
Make them.

Does any body know where to get custom straight pipes made for a 06 bonnie?

10-26-2009, 12:57 PM
Remove the silencers and cut the header off just before the last bend.

10-27-2009, 10:36 AM
Did that. And re-jetted the carbs with a 120. Sounds great but the loss of the back presure is also a loss in power. Is it possible to get the power back?

10-27-2009, 11:35 AM
Where is it losing power? It's possible to get it back through some carb tuning and better re-jetting for sure. I'd start looking at the plugs after making some passes to see where it's rich or lean.

10-27-2009, 7:20 PM
Depending on what you've got going on the intake side, I'm betting 120 mains are going to be way lean anywhere above about 1/4 throttle.

My 865 Scrambler w/ K&N pods and D&D slip-ons, 150 mains, 1 shim on needle and 42 pilots was dead on 13 to 14:1 A/F ratio.

10-27-2009, 8:40 PM
Are you running pods or airbox?

140s, 42s, and 2-3 turns on the air screw is a good base line with pods.
128s, 42s, and 2-3 turns blah blah blaf if you're still running an air box.

Gonna have to run a small baffle if you want it to run right across the entire RPM range.

10-27-2009, 8:42 PM
looks like you still have the airbox in your default pic...

10-28-2009, 12:05 AM
Not sure what aesthetic you are looking for but I love the SS Bubs on my bonne. Always thought it would be cool to rebuild them into a high pipe.

10-28-2009, 5:56 PM
Yeah I still have that damn stock air box on there. Thats the next project. I found some small baffles, but was told there for a sporty. Im trying to get the load triumph sound and maintain a even amount of power as I run threw the gears.( I cant have my buddies 09 dark custom sporty beat in a drag) Im the only guy in my crew rocking a triumph.

10-28-2009, 8:44 PM
any baffle that fits in the pipe is fine. like i said 128 mains, 42 pilots, and 2 turns on the air screws usually does the trick.

if you click the link below, you can see an exhaust mod i did to a thruxton. sounded damn near stock at idle, and sounded like an old one everywhere else. ran like a fucking champ across the entire rpm range.


but you cut your headers already didn't you?