I have Cobra fuel processors for sale on Ebay at a discount. New stock from a warehouse closeout. These work well. I have one on my 04 GSXR1000.
Qty 2 for 04-05 GSXR750 $120.00US each
Qty 2 for 06-07 GSXR600 $120.00US each
http://cgi.ebay.ca/Suzuki-04-05-GSX...rcycles_Parts_Accessories&hash=item3f0500f718
http://cgi.ebay.ca/Suzuki-06-07-GSX...rcycles_Parts_Accessories&hash=item3f05010050
Qty 2 for 04-05 GSXR750 $120.00US each
Qty 2 for 06-07 GSXR600 $120.00US each
http://cgi.ebay.ca/Suzuki-04-05-GSX...rcycles_Parts_Accessories&hash=item3f0500f718
http://cgi.ebay.ca/Suzuki-06-07-GSX...rcycles_Parts_Accessories&hash=item3f05010050