Due to the defect SB unit messed up the car's computer and caused error message, I am thinking to have the DINAN Performance Engine Software downloaded instead. It costs $499.99 with half hour labor. Worth it?

Thank you.

 

IMO, it's worth it if you already have a few Dinan mods on your car, mainly the throttle body/CAI/exhaust. If you just go for the software by itself, you'll truly see nothing more than 'slightly' better throttle response. That's about it. Then there's the ability to exceed 155 mph, but who does that on a daily basis? Not worth spending $500+ bucks unless you plan to add more mods.

 

Thank you for sharing.

I was also thinking about the Dinan signature package but it will cost $5000 instead. I guess I am just kind of upset and disappointed that the SB did not work out and wanted to have something filled in instead......

 

your warning MSG will go away after driving 50-60 miles , no need to take to dealer

 

I drove the car for 4 days with over 100 miles and the error message was still on. I already brought the car to the dealership. Felt like got burned and hesitate to re-install the SB again.

 

Hi,

IMO, I believe the Dinan engine software upgrade is worth it. Noticed much better throttle response in DS Mode and when passing cars on freeway. I also have the Supersprint exhaust as well. If you do a lot of city driving then it's probably not worth it.

-Jay

 

I thought someone said Dinan for the 545i was snake oil.

 

Was the SB a defect right out of the box? I have the SB and I never got a error msg. I have a 2004 545i as well.