I wanted to know for myself really what the weight and design differences were from the OEM Ti system and the aftermarket Graves system.
Well I bought a Graves slipon a few months back. I actually enjoy the sound of it, it isn't what I would call loud. That is a plus!!
Then a forum member posted up a used Full SS Graves system.. Of course, most people know that there isn't alot TOP END POWER to be gained over the VERY WELL designed OEM Titanium system from Kawasaki.
But what the Full aftermarket system offers is HUGE amount of streetable and some dragracing HP>>>> Both Graves and Brock's full system make 10-15 HP more horsepower in the midrange over the stock headers with and without a slipon exhaust. So, the top end power gains might be small but that is a huge gain in midrange power. That's why I jumped on it!!
I did a generic scale test with me on a digital scale. I weighed in a 164.4 shoes and shorts in my shop. Then took the Graves slipon system with OEM headers and held it while on the scale. Did the same for the Full Graves system also. The Graves muffler for the slipon system and the full system are the same exact muffler. But everything else is completely different.
The OEM headers with Ti/CF Graves slipon weighed in at 173.0 Putting the system weighing in at 8.6 lbs OR 8 lbs 10 oz
The Full SS Graves with Ti/CF muffler weighed in at 174.4 Putting the entire system weighing in at 10 lbs....
You can see the slight changes in the header design but the biggest difference is the longer 2 pipes collector area of the Graves. There is almost no 1 large diameter pipe on the Graves system,, just right before it goes into the muffler.
This also can be seen in the Brock's design, if you look closely near their muffler you will see 2 long pipes going all the way back into the muffler. Brock's dyno runs are done within 1 hour of each other.. and the graphs are located in the "product details" tab at the bottom of the paragraph.
Information was from these 2 websites.. http://www.gravesport.com/Graves-Mot...s-Exhaust.html
2005 ZX-10R Akrapovic Ti Evo 2 w/CF LOR can, PC3 with custom map, Factory Pro velocity stacks
2009 ZX-10r Full Gen4 Brock's SS exhaust with CF 14" can, PC3, Secondary Butterflies Removed, Kawasaki Race Exhaust Cam, My Own TRE, Degreed Cams 109/108
2011 zx10r Lower'd 2" Frt & Rear, Stretched 8", Graves CF slipon, GUHL Flashed ECU