I've got a great deal on a y pipe but I've always had this thing agenst cheap bends, I know that the "crinkle" bends are crap, but if I'm running a 3' y pipe on a 3' cat back, am I looking at a big hit with cheap pushed in bends?

anyone know any flow numbers on a manderal(sp?) to these bends?

 

I've heard 33% loss in flow used as a guestimate.

I don't think you can say exactly X amount of loss because a small 10degree 'crinkle' bend will have very little loss compared to a 10 deg mandrel bend, however a 90 will show a very large loss. In other words its dependent on the angle of the bend.

IMO, get a mandrel bent Y.

-brent

 

damn dude, I didn't know I had a twin out there, but from looking at your sig I thing I've got a exact twin, I guess it is time to put the ROH's back on.