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      12-17-2020, 11:11 AM   #48
FloridaM5
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Drives: 2021 M3 Comp RWD
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Quote:
Originally Posted by Jrunr View Post
With these mods, with the 40i ever get close to the performance of the 50i?
Nah. You're still down on power a good bit vs the m50 (about 100hp or so). However, it does make it a good bit more fun to drive. If you want to make n63 power from the b58, it's easy and pretty cheap...pure turbo upgrade or nitrous and you're there. And the b58 is a stout motor at those power levels.
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