JB McG
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« on: September 04, 2021, 09:27:52 PM » |
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I just bought my first Valk about a month ago and love the bike! I see a lot of people have put aftermarket pipes, most frequently the Cobra 6 into 6. I'd looked into having Mark T make a set of his custom pipes too, as those seem to come highly recommended. But, I've never heard or seen any of them in person so I'm a little reluctant to make any decisions without some in-person research. I live in Bellingham, and I would love to meet up with anyone who has a set of aftermarket pipes they really like. Would just really like to hear them and hear about your experience with them.
LMK! Thanks!
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AKA, Jon '98 Tourer Bellingham, WA
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Jess from VA
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« Reply #1 on: September 04, 2021, 11:04:40 PM » |
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JB McG
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« Reply #2 on: September 05, 2021, 09:42:51 AM » |
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Jess, what are you running? If you have the Cobra 6-into-6, did you do the rejet kit?
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AKA, Jon '98 Tourer Bellingham, WA
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The emperor has no clothes
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« Reply #3 on: September 05, 2021, 10:32:09 AM » |
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To me, it seems weird to put on pipes that will reduce power (Cobras).
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Jess from VA
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« Reply #4 on: September 05, 2021, 11:29:43 AM » |
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Jess, what are you running? If you have the Cobra 6-into-6, did you do the rejet kit?
I just have stock exhaust with 18" flat cut truck stack tips in replacement of the stock tips. One bike is bone stock, and the other had the piggies cut off when I bought it. I've never had the urge to change anything else at all. My carbs are stock, but both bike are fully desmogged. I rode a Hog with aftermarket Pythons for 18 years (not straight, but baffled, but quite loud if you goosed it) so I already had loud noise out of my system when I traded up from Harleys to Valkyries in 2005. I like a little rumble, but no more. I don't like cops hearing me coming around the bend and flipping on their radar or lidar on me. And the Valk cannot be significantly powered up with any other exhaust, the OE is quite efficient.  
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« Last Edit: September 05, 2021, 11:34:16 AM by Jess from VA »
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JB McG
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« Reply #5 on: September 05, 2021, 12:23:18 PM » |
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To me, it seems weird to put on pipes that will reduce power (Cobras).
Yeah, that's a consideration. I talked to a local performance tech who is familiar with Valks who said that power loss can be mitigated somewhat by individual carb tuning (costly) or rejet (cheaper route). Also, I've read posts from Mark Tobias explaining why the cobras lose torque. I don't really want to lose power. What are you running on your bike, meathead?
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AKA, Jon '98 Tourer Bellingham, WA
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JB McG
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« Reply #6 on: September 05, 2021, 12:29:38 PM » |
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Jess, what are you running? If you have the Cobra 6-into-6, did you do the rejet kit?
I just have stock exhaust with 18" flat cut truck stack tips in replacement of the stock tips. One bike is bone stock, and the other had the piggies cut off when I bought it. I've never had the urge to change anything else at all. My carbs are stock, but both bike are fully desmogged. I rode a Hog with aftermarket Pythons for 18 years (not straight, but baffled, but quite loud if you goosed it) so I already had loud noise out of my system when I traded up from Harleys to Valkyries in 2005. I like a little rumble, but no more. I don't like cops hearing me coming around the bend and flipping on their radar or lidar on me. And the Valk cannot be significantly powered up with any other exhaust, the OE is quite efficient.   Yeah, that's a good point. I'm not looking to get crazy with the volume, which is why I'm a bit reluctant about the Cobras. What I've been told about the Mark T's is that you get a bit more torque and HP, particularly if you go with the crossover setup, and that the real volume comes from the throttle. My main issue is getting a set of pipes with low enough miles to warrant putting an extra $1,000 +/- into them. I could send him mine, but they have nearly 100k miles on them. Doesn't seem like a good investment. I've been on the lookout for a good set of stock pipes, so if you see or know of any, lmk. In any case, I would still like to see and hear them in person.
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AKA, Jon '98 Tourer Bellingham, WA
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gordonv
Member
    
Posts: 5760
VRCC # 31419
Richmond BC
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« Reply #7 on: September 27, 2021, 04:44:13 PM » |
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Here is what I'm changing mine into.  It's just 4" truck stacks replacing the rear chrome. In my case, I replaced the whole 4" length. Some just do the 18" tips, get rid of the taper. Mine because the pigges where cut off.  msb bike looks the same as mine, but he has replaceable glass packs in his. He can change them out. We both have these 4" slip in marine baffles. https://www.hardin-marine.com/p-12622-4-slip-in-silencer.aspxLeave then in to keep the bike quite. Remove for the noise.
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1999 Black with custom paint IS  
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98valk
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« Reply #8 on: September 27, 2021, 05:36:06 PM » |
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Jess, what are you running? If you have the Cobra 6-into-6, did you do the rejet kit?
I just have stock exhaust with 18" flat cut truck stack tips in replacement of the stock tips. One bike is bone stock, and the other had the piggies cut off when I bought it. I've never had the urge to change anything else at all. My carbs are stock, but both bike are fully desmogged. I rode a Hog with aftermarket Pythons for 18 years (not straight, but baffled, but quite loud if you goosed it) so I already had loud noise out of my system when I traded up from Harleys to Valkyries in 2005. I like a little rumble, but no more. I don't like cops hearing me coming around the bend and flipping on their radar or lidar on me. And the Valk cannot be significantly powered up with any other exhaust, the OE is quite efficient.   Yeah, that's a good point. I'm not looking to get crazy with the volume, which is why I'm a bit reluctant about the Cobras. What I've been told about the Mark T's is that you get a bit more torque and HP, particularly if you go with the crossover setup, and that the real volume comes from the throttle. My main issue is getting a set of pipes with low enough miles to warrant putting an extra $1,000 +/- into them. I could send him mine, but they have nearly 100k miles on them. Doesn't seem like a good investment. I've been on the lookout for a good set of stock pipes, so if you see or know of any, lmk. In any case, I would still like to see and hear them in person. cross over doesn't work for a flat six aka v6 with a 180 degree v unless the crossover is far from the collectors. for the valkyrie I ran some numbers before and the cross over would have to be where the rear wheel is or behind it to provide power. at the collectors just mainly reduces db. Right after the collectors works for V-8 engines. only way to get back to stock power with the cobras is to re-jet the carbs. what your mechanic stated just tuning the carbs is wrong. best for power is the 3x2 viking exhaust, second would be 3x2 two brothers, if u can find them used since they are not made anymore. using the oem head pipes and a collector and glass packs will net 5-8HP, per dynos. supertrapp made a set, they made power. Delvac is on ebay they make power.
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1998 Std/Tourer, 2007 DR200SE, 1981 CB900C 10speed 1973 Duster 340 4-speed rare A/C, 2001 F250 4x4 7.3L, 6sp
"Our Constitution was made only for a Moral and Religious people. It is wholly inadequate to the goverment of any other." John Adams 10/11/1798
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JB McG
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« Reply #9 on: September 27, 2021, 07:45:11 PM » |
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cross over doesn't work for a flat six aka v6 with a 180 degree v unless the crossover is far from the collectors. for the valkyrie I ran some numbers before and the cross over would have to be where the rear wheel is or behind it to provide power. at the collectors just mainly reduces db. Right after the collectors works for V-8 engines. only way to get back to stock power with the cobras is to re-jet the carbs. what your mechanic stated just tuning the carbs is wrong.
best for power is the 3x2 viking exhaust, second would be 3x2 two brothers, if u can find them used since they are not made anymore. using the oem head pipes and a collector and glass packs will net 5-8HP, per dynos. supertrapp made a set, they made power. Delvac is on ebay they make power.
I wondered about those Delkevic exhausts. Seem almost too good of a deal.
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« Last Edit: September 27, 2021, 08:16:51 PM by JB McG »
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AKA, Jon '98 Tourer Bellingham, WA
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frelichth
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« Reply #10 on: December 08, 2021, 09:47:23 PM » |
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I'm living in Spanaway and if you are down in the Tacoma area send an email and we can meet up. I have a 98 Valk with cobra pipes, still baffled, and I love the sound. Not too loud until you crack the throttle. Will be more than happy to let you get an idea how they sound in person.
Terry
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Experience is a wonderful thing, it enables us to recognize a mistake when we make it again.
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Bearjaws
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« Reply #11 on: December 19, 2021, 09:46:59 AM » |
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I have taken a set of Standard Valk exhaust, did the glass pack exhaust mod describe from the VRCC 1500 Tech Board. With the help from my friend "LOCOMECH" from Marysville. Like the sound, decibles a little high but it sounds awesome.
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