Originally Posted by wingedwheel
dinan 550 stage 4 = $ 70,000 + dinan mods $ 11,000.00 = $ 81,000.00.
M5 = $ 105,000 LIST ( well equipped, could get upto $ 112,000.00). Do the math.
= $ 24,000.00 and up difference.
Your dreaming a nicely optioned M5 has an MSRP 97k a 550 is about 70k to 80k with no Dinan. To get your 550i fully upgraded with Suspension, LSD, Brakes, Intercooler, Software, Intake, Wheels, Tires, and I could go on. Atleast 25k more like 30k to 35k which puts you over an M5 and it will still be lacking. Who wants the baddest 550i? You. Most people want the M5. You can lie about the numbers to suit your case.