nope.... drop in is around 2- 4 while open port should be 5 - 8... 5 - 8 also depends how u set up ur open port.... if u suck more heat rather den cold air which is also useless...

How much u willing to spend.... u can do the whole open port with heat shield cheap or expensive.. as cheap as 500 bucks also enough.... as much as RM1k and above also got.. speedworks charging around 700 for knn open pod and they heatshield...