I run the plx wideband. Also try the chip, literally thousands of people run it with no problems. I ran it with no issues untill I got cams then i went with Joe at trick tuners for his custom e-mail tunes. I am a firm believer in a custom e-mail tunes because they step forward with driveability no matter how tunes it takes. Dyno tuners are more worried about max power(safely) and idle and let the chips fall as far as driveability. some will fix small things but it all comes at a cost. I went with driveability and let the hp numbers fall as they will