2015年12月22日 — 3" intake is plenty even with ridges. The air transitions from that tubing to the intake manifold and the interior of that is much smoother.
An air intake hose ensures there is enough clean air and oxygen being supplied to the engine. Proper shape or flexibility so that it fits well into the engine...
Product variety is complete, good quality and inexpensive, the delivery is fast and transport is security, very good, we are happy to cooperate with a reputable company!