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[Fullsac Performance]

Everybody knows, if we are talking about our garages or cubic inches, bigger is better.
If we are talking about mufflers cores in our Harley, maybe not?
Here's a comparison of our 3 core sizes dynoed on a
2009 CVO RG with non cat headpipe. Fullsac Base map installed with TTS Mastertune
 
 Top run # 59..............2.0 cores
 Middle run # 77...........1.75 cores
 Bottom run # 64..........2.25 cores

The 1.75 and 2.0 are very close.
The 2.25s give up a couple of points across the board. Enough that you could feel it? Not likely.
I still encourage people to buy what they want to listen to all day. If you like loud, go big. If you like quiet, go small. At the end of the day, after having the cruise set at 75 for 10 hours straight, a comfortable sound level and a happy wife is all that will matter.

Steve

[GtreetSlide]

What was the motor?

Thanks jb

[infanterene]

Im glad I ordered the 2". They seem like a great compromise between power and sound. I cant wait for them to get here.

[Fullsac Performance]

What was the motor?

Thanks jb

2009 CVO RG, non cat headpipe.

Steve

[Trey767]

I just installed the 2.25 I don't think it's loud as the Rinehart's, but I don't know the performance value's. But by your numbers is 2.25 poor chose?

Trey

[invinci]

I have the exact 2.0 set up as shown and am very pleased.. To me the sound is perfect, loud enough but not obnoxious, the harder you twist the grip the louder it is, cruising is fine and you can hear the radio.. More importantly than all of that is that it runs real strong...

[tlr]

I have the 2.25's with non cat.  I'm running around 96 and 118.  I am very happy w sound and performance of bike. 

[Fullsac Performance]

I just installed the 2.25 I don't think it's loud as the Rinehart's, but I don't know the performance value's. But by your numbers is 2.25 poor chose?

Trey

Poor choice? If your happy with the sound level, you made the right choice. Power difference is very little. With out the dyno we would never know there was a difference in performance. This is a WOT comparison. How often do we snap the throttle wide open at 2000 RPM? In the real world, I don't think anyone could really tell the difference.

Steve

[hdctss]

You guys at fullsac should have provided the dyno run with the stock pipes, so that all of us could have seen the benefit of both the non-cat head pipe, and your fullsac cores, the cores that you are trying to market on this site.  I think that would certainly have helped me make a decision between your cores and the rest of the after-market exhaust systems.

[infanterene]

It's pretty well documented that stock bikes make low 80's horsepower. Look for the thread titled stock cvo horsepower.

[hdctss]

My '07 made 80 stock and 87 tuned with the supertrapp seII slip-ons.  I have to say that had I know I could have made 97 with the fullsacs that I would have gone that route.  All I am saying is that every bike, every engine is an individual entity.  If this one is picking up 15 to 17 horsepower with these baffles then this is the highest increase I have ever seen for this engine with only an exhaust change.  I would just like to see the progression from stock as the changes were made.  Certainly the fullsacs have been known on this board for their great sound, but with a performance increase like this they should also be known for their performance.  This should make Hot Bike, Bagger Magazine etc...

[fourstar]

My '07 made 80 stock and 87 tuned with the supertrapp seII slip-ons.  I have to say that had I know I could have made 97 with the fullsacs that I would have gone that route.  All I am saying is that every bike, every engine is an individual entity.  If this one is picking up 15 to 17 horsepower with these baffles then this is the highest increase I have ever seen for this engine with only an exhaust change.  I would just like to see the progression from stock as the changes were made.  Certainly the fullsacs have been known on this board for their great sound, but with a performance increase like this they should also be known for their performance.  This should make Hot Bike, Bagger Magazine etc...

It wasn't just a baffle change that achieved those numbers.  There are header pipe and tuning map modifications as well.  I wouldn't want to see it in a national publication because of the scrutiny it would invite from regulating agencies.

[jfh]

My '07 made 80 stock and 87 tuned with the supertrapp seII slip-ons.  I have to say that had I know I could have made 97 with the fullsacs that I would have gone that route.  All I am saying is that every bike, every engine is an individual entity.  If this one is picking up 15 to 17 horsepower with these baffles then this is the highest increase I have ever seen for this engine with only an exhaust change.  I would just like to see the progression from stock as the changes were made.  Certainly the fullsacs have been known on this board for their great sound, but with a performance increase like this they should also be known for their performance.  This should make Hot Bike, Bagger Magazine etc...

You would not see the 97HP on your '07 without a head pipe change.  The 09's have a better design, but even they won't see the full 97HP without removing the catalytic converter material from the head pipe. Far more important than the peak HP is the broad flat torque curve that delivers rewarding everyday street riding performance.

[GtreetSlide]

I went with Steve's reccomendation for the 2" baffles in my 09 Street Glide (Stage II 103 motor).. I could not be happier with the performance or sound. I also got the TTS from Steve and after a lot of input from here and other boards, using V-Tune has my bike dialed in really well. I was a little slower on the clutch the other day than I was on the throttle and felt the bump of a front tire hitting the pavement. The TTS, Fullsac cores, seem to work really well with the 255 cam. Took it on a 2700 mile trip so far and loved every minute of it.

Thanks for posting the dyno results comparing the baffles. It is excellent info regardless of what some replies seem to suggest.

jimbob

[hdctss]

I will be looking for some new baffles or mufflers now that I have my non-cat head pipe.  It sounds better but it is still too quiet.  This is why I would love to see the changes that were made to attain those power levels.  Does the example bike have a different backing plate and air cleaner, and what programmer and map is being used?