BUB 7 True Dual or TD w/ crossover
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Road Captain
Joined: Mar 2008
Posts: 546
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From: Bergen County, NJ
BUB 7 True Dual or TD w/ crossover
I'm reading allot about various exhaust systems on the forum. Seems like everyone who has the BUB 7's are happy with them and I like the tip angle to match the angle of my bags. Any words of wisdom on which BUB 7 systems to go for? TD or TD with a crossover. I'm into tone not volume. Thanks in adavnce!
Road Warrior
Joined: Apr 2008
Posts: 1,266
Likes: 7
From: Indianapolis
I had the Bub 7 TD's on my '07 Road King. I went without the cross over. If I had it to do again, I would get the crossover. I don't know if there would be much difference in tone, but I always felt that I had lost a little bottom end torque. Just my .02
Outstanding HDF Member
Joined: Jul 2006
Posts: 2,876
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From: Washington State
My personal experience is the same as mentioned. I'm not going for any high horsepower motor and I didn't want to lose any bottom end grunt since I mainly ride 2 up. As for sound, I love the way they sound. My brother has the Rhinehart TD, and they are louder.
The BUB's have a very nice growl and no tinnie sound at all, I'm very happy. I also happen to like the way they look on the bike and the way they frame in the V of the motor. It takes the exhaust away from your thigh and also makes getting at your oil dipstick easier.
The BUB's have a very nice growl and no tinnie sound at all, I'm very happy. I also happen to like the way they look on the bike and the way they frame in the V of the motor. It takes the exhaust away from your thigh and also makes getting at your oil dipstick easier.
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Road Captain
Joined: Mar 2008
Posts: 546
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From: Bergen County, NJ
Your bike is what got my attention on another thread. Your bike is real nice looking!! What did you do for fuel management?
Road Master
Joined: Feb 2008
Posts: 935
Likes: 10
From: Goshen IN
First it was a SERT with a 2-1 Then put on the Bub's ran like crap Put on a PCIII but couldn't dial it in because the SERT. So last Friday I pulled the PCIII and had the SERT dyno tuned. Now I only getting 28mpg. Called dyno teck and working on a new tune.
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Outstanding HDF Member
Joined: Jul 2006
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From: Washington State
So you no longer have an exhaust pipe coming from the rear cylinder?
Show us how you eliminated that........ 
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Joe Kucinski
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Joined: Jan 2008
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From: Pacific Northwest
The True Duals w/ crossover are NOT true duals no matter what Bub wants to call them. They appear to be no different than the stock setup. If I'm wrong about this please show me the err in my way.
That being said you could sure save some money by putting on a pair of slip-ons and calling it good. While you're at it make sure the stock crossover pipe doesn't extend into the other pipes at the junction of either (at the "Y" and down at the front pipe). You can only determine this by removing the stock header and visually inspecting it (look inside). If it does clean it up with a die grinder before you reinstall it and it will breathe much better. I saw one stock crossover the was probably 50% occluded at both ends. Man did that thing run better after we cleaned those pipes up.
That being said you could sure save some money by putting on a pair of slip-ons and calling it good. While you're at it make sure the stock crossover pipe doesn't extend into the other pipes at the junction of either (at the "Y" and down at the front pipe). You can only determine this by removing the stock header and visually inspecting it (look inside). If it does clean it up with a die grinder before you reinstall it and it will breathe much better. I saw one stock crossover the was probably 50% occluded at both ends. Man did that thing run better after we cleaned those pipes up.
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From: Washington State
Just one laymens attempt at understanding engineering
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