I GOT .4-.5 OUT OF THE BOX ON MY INDY 440-25 INTAKE COMPARED TO MY ORIGINAL MAX WEDGE CROSSRAM. I WENT FROM 10.70 TO 10.30 RIGHT OUT OF THE BOX AND THEN JETTED AND GOT ANOTHER TENTH OUT OF IT. YOU NEED SOME BIG METERING JETS FOR THIS INDY INTAKE. I THINK IT IS ONE UGLY PIECE BUT IT WORKS FOR SURE. SO YOU NEED TO KNOW: "WOULD YOU RATHER LOOK GOOD OR RUN GOOD" THAT IS THE QUESTION?