so i'm building a 92 civic dx hatch (d15) homemade turbo project. need to pick up those u-bend pippings. however, i would like to know how many pipes do i need? is 5 enough or i need to get more? also, do you guys think 2.25" into intercooler and 2.5" out good? or should i go 2.25" all the way? i'm prolly gonna run 6psi the most so any input would be great!

Jeff-

 

someone just asked the same question couple of days ago

 

i used 3. but i'm using the upper intercooler pipe from a drag3 kit. so i'm guessing 4 would do it

 

I use 3 U bends, one 90 degree bend.