New Exhaust, Less Performance?
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Joined: Aug 2013
Posts: 95
Likes: 6
From: Lafayette, LA
So the results are in!! 12 hp increase and 5 fp of torque gain with the Rinehart 4" slip ons and a proper tune. However, the power curve has been displaced a little and though I've gained some overall power, I've lost some on the bottom end. Less torque and hp up until 3k, then more on the top end.
The bike is running good and I've achieved the results I wanted but also made some sacrifices. I can def feel the loss of low end torque. It's not drastic but it is noticeable. And it's quieter which is what I wanted. But the Rineharts are almost too quiet! Ah well.. So it begins. The quest for the perfect combination of exhaust tone and power. I've got a long road ahead of me!
Also,
The guy who worked on the bike said the same thing about 2-into-1's and how you get more performance from that kind of setup. May be something to look into in the future.
And I just may do that before the next go round. The local indy shop here is pretty good as well... I prob should have picked their brain first before going with these mufflers.
I'm attaching the dyno sheet so you guys can take a look at the results. The red line is the first run with the old mufflers and the blue line is with the Rineharts.
The bike is running good and I've achieved the results I wanted but also made some sacrifices. I can def feel the loss of low end torque. It's not drastic but it is noticeable. And it's quieter which is what I wanted. But the Rineharts are almost too quiet! Ah well.. So it begins. The quest for the perfect combination of exhaust tone and power. I've got a long road ahead of me!
Also,
I'm attaching the dyno sheet so you guys can take a look at the results. The red line is the first run with the old mufflers and the blue line is with the Rineharts.
Last edited by danny1975; Nov 5, 2014 at 04:14 PM.
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
is that a 4th gear pull? That dip is pretty significant.
2:1 in most cases will always wind up with better performance but.. they have that inherent TQ dip with them.
You don't mention what head pipe you're using. That makes all the difference in the world. You also make no mention of the tuning device.
IMO the best advice you've been given here is talking to Steve @ Fullsac. I chased and chased, threw good money after bad, looking for that infamous power and sound combination over the past 2 years. I've probably spent no less than $4000 on exhaust setups and combinations and tuning. What ultimately worked for me was a Fullsac DX pipe, 4" 2012 CVO cans, Fullsac 2.25" power cores, only used 1/2 of the stock baffle wrap. PERFECT look, PERFECT sound (nice low deep rumble, barks when you get on it but excellent tone when cruising), PERFECT performance.
I'll be in Lafayette Saturday but not on the bike otherwise you could hear these. Do you get to Houston often?
2:1 in most cases will always wind up with better performance but.. they have that inherent TQ dip with them.
You don't mention what head pipe you're using. That makes all the difference in the world. You also make no mention of the tuning device.
IMO the best advice you've been given here is talking to Steve @ Fullsac. I chased and chased, threw good money after bad, looking for that infamous power and sound combination over the past 2 years. I've probably spent no less than $4000 on exhaust setups and combinations and tuning. What ultimately worked for me was a Fullsac DX pipe, 4" 2012 CVO cans, Fullsac 2.25" power cores, only used 1/2 of the stock baffle wrap. PERFECT look, PERFECT sound (nice low deep rumble, barks when you get on it but excellent tone when cruising), PERFECT performance.
I'll be in Lafayette Saturday but not on the bike otherwise you could hear these. Do you get to Houston often?
Last edited by UltraNutZ; Nov 5, 2014 at 04:34 PM.
Grand HDF Member
Joined: Nov 2012
Posts: 3,784
Likes: 100
From: Pasadena TX
For what it's worth, my 05 Classic had 4" Rineharts on the stock header pipe when I got it. One day on the highway the brake side muffler spit the baffle out. I contacted Rinehart about a new baffle. It turns out that at some point in time (08?) they had a design change for this very reason. They sent me a brand new set for free. The kicker? The new style end cap now has a through bolt that retains the baffle. So I don't see where anything is getting fokked up. They are, however, loud.
Extreme HDF Member
Joined: Nov 2007
Posts: 14,670
Likes: 139
From: East of the Sun, West of the Moon
For what it's worth, my 05 Classic had 4" Rineharts on the stock header pipe when I got it. One day on the highway the brake side muffler spit the baffle out. I contacted Rinehart about a new baffle. It turns out that at some point in time (08?) they had a design change for this very reason. They sent me a brand new set for free. The kicker? The new style end cap now has a through bolt that retains the baffle. So I don't see where anything is getting fokked up. They are, however, loud.
Thread Starter
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Advanced
Joined: Aug 2013
Posts: 95
Likes: 6
From: Lafayette, LA
is that a 4th gear pull? That dip is pretty significant.
2:1 in most cases will always wind up with better performance but.. they have that inherent TQ dip with them.
You don't mention what head pipe you're using. That makes all the difference in the world. You also make no mention of the tuning device.
IMO the best advice you've been given here is talking to Steve @ Fullsac. I chased and chased, threw good money after bad, looking for that infamous power and sound combination over the past 2 years. I've probably spent no less than $4000 on exhaust setups and combinations and tuning. What ultimately worked for me was a Fullsac DX pipe, 4" 2012 CVO cans, Fullsac 2.25" power cores, only used 1/2 of the stock baffle wrap. PERFECT look, PERFECT sound (nice low deep rumble, barks when you get on it but excellent tone when cruising), PERFECT performance.
I'll be in Lafayette Saturday but not on the bike otherwise you could hear these. Do you get to Houston often?
2:1 in most cases will always wind up with better performance but.. they have that inherent TQ dip with them.
You don't mention what head pipe you're using. That makes all the difference in the world. You also make no mention of the tuning device.
IMO the best advice you've been given here is talking to Steve @ Fullsac. I chased and chased, threw good money after bad, looking for that infamous power and sound combination over the past 2 years. I've probably spent no less than $4000 on exhaust setups and combinations and tuning. What ultimately worked for me was a Fullsac DX pipe, 4" 2012 CVO cans, Fullsac 2.25" power cores, only used 1/2 of the stock baffle wrap. PERFECT look, PERFECT sound (nice low deep rumble, barks when you get on it but excellent tone when cruising), PERFECT performance.
I'll be in Lafayette Saturday but not on the bike otherwise you could hear these. Do you get to Houston often?
I do make it to Houston from time to time and would like to check out your setup. I'll let you Know next time I'm over there. I'll be headed to Galveston saturday for the rally, the same day you're headed to Lafayette.
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Road Warrior
Joined: Apr 2010
Posts: 1,648
Likes: 37
From: Monroe, Louisiana
I did post the head pipes and tuner along with the other mods but it was a few replies into the thread. It's got vance and Hines dual headers and the tuner is a power commander 3. I'm not sure what gear the pull was done in, and yes, the dip is pretty steep. I can feel the loss in the low end.
I do make it to Houston from time to time and would like to check out your setup. I'll let you Know next time I'm over there. I'll be headed to Galveston saturday for the rally, the same day you're headed to Lafayette.
I do make it to Houston from time to time and would like to check out your setup. I'll let you Know next time I'm over there. I'll be headed to Galveston saturday for the rally, the same day you're headed to Lafayette.
Mac
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Joined: Aug 2013
Posts: 95
Likes: 6
From: Lafayette, LA
So I've been riding it for a couple of days and I'm really regretting my decision. I think I was being optimistic about the loss of torque.. It's pretty severe. When I twist the throttle it's pretty much just not there until I cross 3k which means any and all the time that I'm cruising. Also, the bike stalled on me this morning while idling and almost didn't start back up. Not good. 
I may try that tune.. Or I may just call Fullsac like a couple of you suggested. I've wasted over a grand on the mufflers and tune and now I've got a bike that performs less and stalls on me. That sucks.
I may try that tune.. Or I may just call Fullsac like a couple of you suggested. I've wasted over a grand on the mufflers and tune and now I've got a bike that performs less and stalls on me. That sucks.