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Dinantronics Sport B58 B48 B46
| 11-25-2018, 07:43 PM | #1 |
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Second Lieutenant
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Dinantronics Sport B58 B48 B46
DINANTRONICS Sport Performance Tuner for B46/B48 and B58 Engines I had this on my 340i for two years before my lease expired. It made a very noticeable difference and is easily the biggest bang for the buck that you can buy. I paid $299 for it new, selling for only $150. Very easy to install/uninstall. I would uninstall it whenever I took the car in to the dealer for service and it took me about 5-minutes each time with practice. Download the Bluetooth app to your phone and you can tune the boost from your phone to +0 (same as stock) +3psi +4psi or -6psi (valet mode which is very handy if/when you have to hand over your key to the valet and want the peace of mind that they are not doing donuts with your car while you are away  From the Dinan website: DINANTRONICS Sport Maximum Gains (B58): Up to 40 HP, 50 lb-ft of torque. DINANTRONICS Sport Maximum Gains (B46/B48): Up to 25 HP, 50 lb-ft of torque. https://www.dinancars.com/product/d4...?series=&mid=/
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