Big Gun has re-designed their DS650 pipe!!! I will be getting a new pipe free of charge. The tailpipe and midpipe are one unit now. The header pipes seal to the tailpipe w/o leaks. The quiet core insert can now be quickly swapped in/out with the race core. I noticed that the description for the 2000 pipe claims a 6HP peak gain on topend as well as a 14lb weight savings over stock!

See www.biggunexhaust.com, click on news.

New for 2001

Big Gun Race Series™ and Quiet Series™ (94db) Exhaust Systems Feature:
• Aerospace Ceramic Coated Headpipe and Tailpipe for more power.
• CNC Billet Aluminum End Cap
• USFS Approved Screen Type Spark Arrestor
• Quiet Series features our patented mechanical core and Big Gun Repack Kit by Silent Sport™ to keep noise levels at or below 94 db!

 

Sound and looks like they got it right this time but it will cost me $600.00.
I due like 94db on sound.

 

Thanks to Scooby's info I did not go for the first one. I'm glad an improved system is available now.Question..is Big Gun the best system for the money? or..
Trying to decide before spring,any help appreciated.

 

ScoobyDFW you have had both the Ron Woods and the Big Gun pipes. What is the difference between the Big Gun and the Ron Woods pipes?

 

Scooby,

If you would'nt mind I would love to have the jetting specs and parts used to enable your accelerator pump. I'm sure you have answered this question before but it would help me very much. I can be e-mailed @ sgoochds650@home.com

Thanks
Shawn

 

my dealer and i have the same mods except exhaust.he has the Big Gun and ive got the WOODS.he wrode both bikes and thought that the WOODS made more power though the entire power band than the Big Gun.he said he was impressed with WOODS.

 

For various reasons, I don't have a good feel for which is better. Both have their + and -

 

I don't have the final settings yet. There have been so many things that have gotten in the way of finishing the tuning. Graydon Proline has been working on the HSR42 carb, so that might be another source to try. Maybe in a few more weeks I'll have an answer, but it may not be exactly what is needed for thr HSR45.

 

Graydon has my DS now and as soon as the jetting specs are done I will let everyone know.
Bearman

 

Just got the 2001 Big Gun very easy to put on and very tight fit.