GO WITH THE MAZDA!!! I SPENT 800 ON MY 1ST GEN AND PUT ABOUT $3,000 INTO IT. PORT THE ENGINE MY SELF, SELF TUNNED THE HOLLEY. IM AT THE RACES EVERY WEEKEND AND I STILL HAVENT FOUND A SUBARU THAT CAN BEAT ME. YOUR FREIND SHOULD BUY THE RX-8 DRIVE IT FOR ABOUT A YEAR AND THEN IF HE FEELS THAT ITS...
TRY THIS
DIS-CONNECT THE AIR INTAKE HOSE FROM THE THROTLE BODY AND START THE CAR. IF TI RUNS FINE THEN YOUR AIR FLOW SENSOR IS SCREWED AND IT WILL BE CHEAPER FOR U TO JUST SWITCH TO A PERFORMANCE INTAKE. IF THAT DOSENT FIX THE PROBLEM THEN YOUR FUEL REGULATOR IS PROBABLY MESSED UP. JUST HOPE...