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  1. bikedave99

    Old Style Kerker 4-1 Fitment

    I bought what was described by the seller as an older style Kerker 4-1 exhaust which apparently can retain the center stand tabs. Do any of you have any experience with this? This is what it looks like: Here is a close up of the collector area: I tried for a while to get it fitted last...
  2. VMAX1260

    1300 Bored engine 39mm or 41 Flatsides ??

    which is the best setup for a 1300cc engine . 39 fcr or 41 fcr. i know 41 works good in big bored engine over 1400cc in a 1300cc ? pcw or vgas?
  3. VMAX1260

    FLATSIDE 39mm 41 mm OR EFI WIL BROS ON A 1300cc ENGINE?

    does anyone had any live comparison of this in the same engine??? i am sure many of us would like to know what works best.
  4. mattness

    kerker 4-1 pics needed

    does anyone have any pictures of a kerker 4-1 uninstalled by itself so i can compare it to one i just bought? thanks in advance i cant find a decent picture anywhere
  5. vmaximum

    kerker 4-1 installiation Q?

    getting ready to install my exhaust, i am reading about syllicone on where the down pipes meet the rest of the pipe. what is the easiest and proper way of going about doing this? do i just put a bead of sillicone around the crack or do i want it to get in between the pipes? i would think i would...
  6. Diablotin

    Overracing 4-1, what do you think ?

    Hi guys, I need to replace my stock exhaust due to rust issue (even if the chrome is perfect) and I'm was searching for getting a pipe locally (philippines) since each time I check oversea, customs and shipping fees are killing me :( Did someone tried overracing exhaust ? I did not know...
  7. M

    Looking for a muffler/can for a 4-1 header

    I just bought a 4-1 two bothers header off e bag, But I am looking for a exhaust muffler/can. It should be slip on design. Not sure of the inlet size yet. Let me know if you got something. My email is [email protected] Just in case my vmax mailbox is full. Thanks, Brad...
  8. G

    looking to buy OEM 1990 Vmax, 4.1 kms

    hello and thank you i live in Canada but found an OEM 1990 V-max in JAPAN with about 4.1 KM Obviously the bike is in PERFECT condition, and selling for around 7000 US (NOT including shipping and handling)....any comments? worth while?
  9. S

    UFO 4-1 dragstar

    Maybe it should be called Loudstar. The system is awesome. Spoke with Jon on monday morning, and I had the pipes this afternoon. Jet hot coating and polished stainless parts are amazing. It took a bit of finessing to piece all the parts together to get the desired endstate, but all in all...
  10. T

    07 stage 7 and Hindle 4-1

    Here is a pic of my 1st dyno run on my 07 Max. So far it has a Hindle 4-1 exhaust and stage 7 dynojet kit. How does this look and why is my run from 3-5k so goofy? The bike had a whole 2 miles on it when they did this run so they didnt get too crazy. I wanted to get a baseline of where I was at...
  11. joelyons50023

    Tuning For Kerker 4-1?

    Just wondering what all jets and settings all togther would be best to go with. I like the idea of having the v-boost controlable but not electronicly more like manually by cable. I want to get some pod filters not k&n so I was wondering what is the carb opening size is for the pod filters? I am...
  12. F

    Quieting down a Kerker 4-1

    The 2000 VMax I just bought comes with a Kerker 4-1 baffled exhaust on it. The baffles are in it, and while there are certainly louder pipes out there, this one is louder than I would like it to be. I love the way the exhaust sounds, don't get me wrong, and I couldn't ask for more in that...
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