Quote:
Originally Posted by bobzdar
BMW X5 4.6is (E53) 2002-2003 Performance Parts - Dinan Cars
According to the Dinan website, S3, S3A and S4 software were without supercharger. S3 was for high flow throttle body, S3A for high flow throttle body and cold air intake, S4 is high flow throttle body, cold air intake and high airflow MAF. As this has all 3 of those items, I'd assume it has S4 software. It also has the Brembo brake package, trans software (supposedly) and full exhaust. But, I put a call into Dinan for clarification on what that SN came with so we'll see what they say. The parts prices do make me choke a bit as they're more expensive than some of my Ferrari parts, ffs.
Regarding a PPI, I trust myself more than most mechanics. I do know one of the guys that has worked on it in the past so will put a call into him to see what he knows of the vehicle.
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Stages of software or not the same as the S3 package. I have stage 4 engine software but I don't have the supercharger.
The only way that X should have the S3 registration is if it was supercharged at one time. As you can see by the website they no longer offer the supercharger which is why you don't see the S3 package. In 2002-2003 it was the premier/exclusive Dinan offering and the only one that came with a serial no. registration.
It's great you are comfortable with your check. I can't get there, always worry I missed something. Was no intention to insult your capability if that was your interpretation.