Mario_GSXR

And i know about that -4-2-1 is better for whole range , and 4-1-1 gets bonus only at high revs but still something in a middle...... and i like low\middle range on 750carb. Specially when screws sets on minus 3.5-4...

Hi , Fellas! I have SRAD750carb. Exhaust is stock 4\2\1 + empty end. I think about two ideas. 1. Delete connecting pipe between 2&3 pipes....As i know its mission is delete some range of noise for free(without extra weight an exhaust). But i am sure this is not for free about the power. 2. SOmetimes .. i want to produce new exhaust collector . 4 individual pipes without mixing . and 4 tiny long alu pipes instead the one. In a book about 4stroke nascar\drag cars authors say- they get best result with 4-1-1. even bigger than 1short pipe per 1cyl. Why 4-1-1 is better than system where any cyl works as individual machine. one carb, one exhaust.