Arty
Well-Known Member
I recently completed modifications on what was called a "Fatty Performance Pipe", replacing the "banana style" pipe I had, and am I ever pleased. The header pipe is a nice piece from CR Machine. I had to extend the header and add bends etc. to get it to fit where I wanted it, and modify the outlet to fit a Phantom Bikes exhaust tip, and also added "Titanium" exhaust wrap as well as a little "creative smashing" to dent the pipe for clearance issues, but I'm happy with the results.
The end result is a huge increase in torque pretty-much throughout the rpm range, but not much increase in high rpm. I expect this is due to the length of the header pipe - around 14 inches. I realize this is too long for better top end, but for a shorter header, I would have had to mount the pipe up high - in the leg-burning position, which I didn't want.
Also,I was advised not to wrap the header because it would increase head temperature, but because of the welds necessary on the header pipe, I wanted to dress it up with the wrap. - To compensate for the extra heat, I am using an "X-port" finned aluminum exhaust spacer between the head and the header pipe.
To summarize - just like it has been said numerous times before, I now have proved it to myself that your best money spent on performance mods is - better ignition, and a better pipe.
Sorry, I forgot to take pictures of the pipe before I added the extended header - but the pictures below show the finished product.
`
The end result is a huge increase in torque pretty-much throughout the rpm range, but not much increase in high rpm. I expect this is due to the length of the header pipe - around 14 inches. I realize this is too long for better top end, but for a shorter header, I would have had to mount the pipe up high - in the leg-burning position, which I didn't want.
Also,I was advised not to wrap the header because it would increase head temperature, but because of the welds necessary on the header pipe, I wanted to dress it up with the wrap. - To compensate for the extra heat, I am using an "X-port" finned aluminum exhaust spacer between the head and the header pipe.
To summarize - just like it has been said numerous times before, I now have proved it to myself that your best money spent on performance mods is - better ignition, and a better pipe.
Sorry, I forgot to take pictures of the pipe before I added the extended header - but the pictures below show the finished product.
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