we developed this intake years ago for a race car we use to support, dyno tested ideal length and diameter to have gain all across the board and result was there. we still use same sizing for all our new cold air creations and results are alway very similar. with these cold air kits sold to other several countries and always made owners happy. sharper throttle response and a sound that will make any petrol head look back.

test subject presented on dyno plot 328 with m50 intake numbers shown are at the wheels

lower reading stock tune

mid one bds software

top one bds software with our cold air intake