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Old 04-11-2011, 07:04 PM   #1
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To exhaust, or not to exhaust

Been contemplating getting aftermarket exhaust since before I even got my bike ('03 Honda Sabre 1100), and I am wondering if it's even worth it. The most performance gain I can get are with V&H pipes and proper jetting . V&H Pro 2-into-1 will give my bike ~+10hp/+8lbs torque, and for V&H Longshots, just flip the hp/torque numbers. Those are rear wheel numbers, btw, not just on paper.

I would be getting exhaust strictly for performance. I am perfectly happy with my stock exhaust, and I like having a quiet bike. (My neighbors appreciate it, too) My question is, for those of you who have aftermarket exhaust and have jetted accordingly, is the performance gain going to be enough to justify the racket the thing will make if I do this? Also, how much performance is lost adding baffles to shut it up a little? I'm just looking for more pull through the top half of 5th gear.

Your thoughts, please.
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Old 04-11-2011, 10:24 PM   #2
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Throw one of dem der flowmasters on dat der bike and yer done.
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Old 04-11-2011, 10:38 PM   #3
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Maybe I'll just get a coffee can like C2Duevas. Lol.
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Old 04-11-2011, 10:44 PM   #4
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Well how often are you in 5th gear wanting the extra power? 10whp is a lot, but if you only find yourself wanting the extra power every once in a while, keep the stock .




Though it would be funny if all of us had aftermarket while Adam was left with his sewing machine.
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Old 04-12-2011, 11:29 AM   #5
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Old 04-12-2011, 11:40 AM   #6
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Old 04-12-2011, 11:42 AM   #7
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It is better for the bike to open up the intake, jetting, and exhaust. Basically it's restricted from the factory. You will notice not just top end power in 5th gear, but better throttle response, and the bike will "feel" right.

At least..that's my experience.
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Old 04-12-2011, 11:48 AM   #8
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Quote:
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It is better for the bike to open up the intake, jetting, and exhaust. Basically it's restricted from the factory. You will notice not just top end power in 5th gear, but better throttle response, and the bike will "feel" right.

At least..that's my experience.
I had the same experience with my intruder
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Old 04-12-2011, 12:12 PM   #9
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Quote:
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Well how often are you in 5th gear wanting the extra power? 10whp is a lot, but if you only find yourself wanting the extra power every once in a while, keep the stock .
Only time I want it is when I'm riding with you guys. Well...not you specifically, Princess, because you never show up for rides.


Quote:
Originally Posted by KSims1868 View Post
It is better for the bike to open up the intake, jetting, and exhaust. Basically it's restricted from the factory. You will notice not just top end power in 5th gear, but better throttle response, and the bike will "feel" right.

At least..that's my experience.
A friend of mine with a VTX1300 says the same thing. I've ridden his bike before and after jetting, and it is definitely smoother through the entire throttle range. It's just that his bike is annoyingly loud...as in loud enough to give you a headache if you aren't listening to music while riding. He has V&H Longshots, btw. Even with his pipes, jetting and aftermarket air box, he can barely pull away from me.
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Old 04-12-2011, 12:15 PM   #10
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Quote:
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Only time I want it is when I'm riding with you guys. Well...not you specifically, Princess, because you never show up for rides.



I think y'all TRY to only go ride when y'all know I'm at work. Not my fault!
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Old 04-12-2011, 08:56 PM   #11
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I think y'all TRY to only go ride when y'all know I'm at work. Not my fault!
Not our fault your schedule sucks.....AND that you pick up extra shifts.
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Old 04-12-2011, 09:47 PM   #12
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I have seen reports of up to -10hp with the silencers in.

I would just leave it stock if you are not worried about the performance gains and happy with the sound.
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Old 04-12-2011, 10:21 PM   #13
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I can tell you that an intake, exhaust and tune made my Mean Streak a whole different bike....
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Old 04-12-2011, 11:12 PM   #14
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I have seen reports of up to -10hp with the silencers in.

I would just leave it stock if you are not worried about the performance gains and happy with the sound.
I'm happy with the sound, but would like a little more performance.

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I can tell you that an intake, exhaust and tune made my Mean Streak a whole different bike....
Only intake mod for my bike is a K&N filter. Filter is under the seat, and there's no way to pipe it for an external intake.
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Old 04-12-2011, 11:25 PM   #15
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a few horses on a bike equals a big gain, so 10hp on a bike will be a pretty big difference!

plus the extra sound could save your life.... loud pipes save lives
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Old 04-19-2011, 10:16 AM   #16
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You can get aftermarket exhaust that not as loud ,but the performance is there.
I use cobra 2 into 1 on my VSTAR 1300 along with a cobra power commander , defintely felt the difference in the bike.
It has a nice sound & not annoyingly loud.
My buddy has a 1100 Sabre with Cobra exhaust & retunned carbs \ rejetted , his bike runs great , my bike is a a little louder though.
Two Wheel Toyzz did both installs for us ,great guys to deal with.
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Old 04-19-2011, 10:23 AM   #17
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stealth is best
+1

I used to want to put all the aftermarket gizmos on the bike and now I don't care anymore. Bike has plenty of power stock and I'm more than happy. Plus leaving it stock eliminates potential problems in the future. That's my narrow view on things.
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Old 04-19-2011, 11:19 AM   #18
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I went back to stock from a jetted cobra dual pipe with K&N. I love the sound of stock pipes. My POS VT750DC had little noticeable change in performance, but an almost 30% increase in MPG. I also did not notice an increase in cager crushing avoidance maneuvers (Houston rush hour). I ride 98% / 2% commuting / recreation so YMMV.
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Old 04-22-2011, 11:38 AM   #19
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Aftermarket exhaust is only part of the equation. If you're only doing slip-ons, there's little else you have to do. Your exhaust flow wont really change due to the head pipes being the same. It may sound a little different but thats about it.

If you want true gains, then you need to modify air intake as well as the fuel delivery.
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Old 04-22-2011, 11:46 AM   #20
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There are options out there that don't change the volume of the sound very much but do allow for much greater flow. The restriction caused by the baffles depends greatly upon the pipe.

On mine, for example, unless under 3/4 throttle or greater, there is little difference in sound volume compared to stock (no, i do not care what Officer Holtsclaw thinks). It is actually quieter than stock at idle through about 4000rpm. Flow is substantially different though and I saw a gain of ~15 lb/ft of torque and 12 hp (at the wheel mind you) over stock.

That's with the quiet baffles in. If i put in the race baffles, which simply create a minimal amount of back pressure for exhaust scavenging, i would see about another 1-2 lb/ft and hp gain - in return for sound levels that I would not wish to deal with on a daily basis.
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