Hey guys i have run into some issues with my busa.....i installed a full exhaust system on my 04 busa. The system was used and i was told it was for a gen one busa. I went on the D & D website and they don't have one thats 4-2-1 for the Gen one as far as i looked. when installing this system i pulled off the oil cooler and now there is a leak from the left hand side line where it connects to the cooler. I have read through here and changed the O rings made sure there is only one etc. Initially it was leaking from both the sides now only one after i pulled it off and reattached it.....your help is much appreciated......ride safe
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