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Old 15-12-2019, 02:18 PM   #1
Bitza
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Join Date: Jul 2006
Location: Poole
Bike: M900ie
Posts: 470
45 or 50mm exhaust

Hi all, has anyone out there experience of tuned 1078 2v exhausts? While I understand that using a standard M1000s 40mm exhaust will be over-restrictive, so going to 45mm dia (+25%) is a no brainer, but its been suggested to me that 50mm (+50%) would be better for max power. As my bike is primarily a road bike I was wondering if 45 might be better for mid-range, even if there was a loss around max revs/power. All thoughts welcome Bitza.
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