MR any good pics of your ride .. Lookin to what pipes look like in black on the 2011 color.. I have 103 KN PCV and looking to add cams 2-1 and auto tuner ..thanks ..sweet ride u got

Jimmy

 

Your 2-into-1 gives a bit more torque low down and holds on longer in the mid range, so there are benefits over your TDs. I would expect your bike to pull cleanly from slower speeds or in high gears and be a blast later on!

When I went from TDs to a 2-into-1 (both of them different brands to yours) the HP and TQ numbers were very close, but low/mid range was quite different, around 15% better than the TDs. The other improvement is how much smoother running the engine is. Have you noticed any change like that?

 

Bike does seem a little more responsive and even revs slightly quicker (If that's possible?).

 

The differences in torque I mentioned are not great, but if your engine is running better in the same way mine is with its 2-into-1, that does indeed make sense. The ride is just better, smoother and a joy!

 

Why were the revs lowered? In the first graph it looks like you could take it to 6.2k while in graph #2 its only taken out to 5.7k

 

The 2 into 1 carried the torque out alot further than the true duals which is what makes it pull.

 

Interesting, I changed my pipes from the Rb lsr II's to the prostock spyders and got 12 % more hp, with the same tq. The tq is earlier and flatter.

Course the lsr's were 1 3/4" and the spyders are 2". The lsr"s are hp also.

Also its a 120r with mid range cams tmax 660's

I attached the dyno showing the differences...

 

I don't have the dyno sheet, but i saw it at the tuners on the dyno. . My 2008 sg with a 96" motor,48h cams,se heavy breather and a D&D fat cat 2 into 1 withe the standard baffle made 89.6 hp and 101 ft lbs.

 

The 2 into 1 may have a little lean problem at the low end, looks best to me. A good 2 into 1 will have more useful power every time

 

I've ran just about every 2-1 pipe made ( sold them all here ) and now run Kury Chrushers Mellows and bike runs every bit as good maybe a tad better than any 2-1 setup i had. Dyno guy was very impressed with these CM slip ons SS head pipe..

The right setup whether its duals, slip ons or 2-1 will all run close, maybe one is a tad better but doubt you'll notice seat of pants..

My bike is 107, Andrews TW55 cams, Jon Sachs heads etc etc my brother runs almost same setup except woods 777 cams and FC 2-1, guess what we run head to head no one leaves each other in the dust...