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DannoXYZ · May 21st, 2019, 06:12 PM

Intake mods yields no benefits of any kind due to restrictive passages in head. Airbox and filter are HUGE and does not restrict flow in amy way. They're about same size as on my CBR600RR with 4x power and 4x airflow. Dyno-tests with and without airbox shows no improvements. Only effective intake mod is to port & polish head.

Best bolt-on mod is full 2-1 exhaust. Gets you lots more power and speed. About an additional 3-5 bhp.

As with any NA engine, biggest bang-for-buck & time is internal. Big-bore high-compression pistons will give 5x improvement of all external bolt-on mods combined.

May 21st, 2019, 06:12 PM	#4
DannoXYZ ninjette.org certified postwhore Name: AKA JacRyann Location: Mesa, AZ Join Date: Dec 2011 Motorcycle(s): CB125T CBR250R-MC19 CBR250RR-MC22 NSR350R-MC21 VF500F CBR600RR SFV650 VFR750F R1M ST1300PA Valkyrie-F6C Posts: A lot. MOTY - 2018, MOTM - Nov '17	Intake mods yields no benefits of any kind due to restrictive passages in head. Airbox and filter are HUGE and does not restrict flow in amy way. They're about same size as on my CBR600RR with 4x power and 4x airflow. Dyno-tests with and without airbox shows no improvements. Only effective intake mod is to port & polish head. Best bolt-on mod is full 2-1 exhaust. Gets you lots more power and speed. About an additional 3-5 bhp. As with any NA engine, biggest bang-for-buck & time is internal. Big-bore high-compression pistons will give 5x improvement of all external bolt-on mods combined.