Just curious if the loss of power that everyone talks about is true. Since the P28 doesn't control the secondary butterflies, they remain open at all times and the torque suffers correct? Just curious if anyone on here is still running a P28 regardless and how it feels. My P72 took a dump on me and finding a stock OBD1 P72 is almost like trying to find a needle in a haystack so I may just have to go with a chipped P28, but I'm still running stock intake manifodl and I don't want any torque loss if that is going to happen. Still, anything is better than running an LS ECU like I am right now temporarily, to get around...=I

 

Don't know how much this will help but... I have a Check engine light for my knock sensor right now and I don't have the IAB canister to keep my secondaries closed. All I can say is... ZERO midrange. I have to launch at like 6K at the track so I don't bog... It's really bad. Not sure if its more to do with the code or the secondaries or probably both combined.