I have a 2009 E93 and got a Dinan S2 software update last year. The difference was night and day between stock and S2. After almost one year, last week, I got the BMW M Performance Exhaust installed.
I immediately noticed an increase in performance. I drove the exact same manner I usually drive and went from 93 octance to 91 octane since I am stuck in California for the time being. I drove the car for a couple of hours as I said before in the same manner I usually drive...and the wheels skidded much more than before the exhaust install. When I give it gas on the freeway, the S2 turbo "hitting the chest" phenomenon happens and pushes you into the seat, especially when you get higher and higher into the red line area.
I didn't expect to feel any difference and installed it to get a more aggressive sound, so this increase is a pleasant surprise. I was so pleased with the increase that I pulled the trigger and ordered a Dinan Cold Air Intake to be installed next week. I will come back with an update to report if there will be any additional noticeable increase in performance after the intake is installed.:burnrubbe
I do not think that gains would be as noticeable if I did not have the Dinan S2 update so I would not be surprised if owners without the S2 installed the exhaust and did not see any gains. I have to guess that the secret to getting the most out of these mods like intake and exhaust is to have complimentary software to take advantage of all that freed up air.
Inside the car, sounds only a little louder at idle...barely noticeable, except for startup...you know it's not stock. The car seems more eager to jump forward with throttle. Highway sounds little bit louder but very comfortable, until you mash your foot and/or downshift...then the sound makes your face smile. Very addicting.:thumsup:
One complaint is the cheap looking tips. They just look cut off. But Akropovich tips are absurdly priced even though they look dope. Cyba tips look decent but don't know how much they are or if they will fit the 80mm tips. If anyone has bought aftermarket tips to use on their Performance Exhaust, please let me know which one.
Personally, I have to say, I should have added this exhaust on much sooner. That is how much I like it. :bonk:
My 2¢. Happy Driving Everyone.
VT
I immediately noticed an increase in performance. I drove the exact same manner I usually drive and went from 93 octance to 91 octane since I am stuck in California for the time being. I drove the car for a couple of hours as I said before in the same manner I usually drive...and the wheels skidded much more than before the exhaust install. When I give it gas on the freeway, the S2 turbo "hitting the chest" phenomenon happens and pushes you into the seat, especially when you get higher and higher into the red line area.
I didn't expect to feel any difference and installed it to get a more aggressive sound, so this increase is a pleasant surprise. I was so pleased with the increase that I pulled the trigger and ordered a Dinan Cold Air Intake to be installed next week. I will come back with an update to report if there will be any additional noticeable increase in performance after the intake is installed.:burnrubbe
I do not think that gains would be as noticeable if I did not have the Dinan S2 update so I would not be surprised if owners without the S2 installed the exhaust and did not see any gains. I have to guess that the secret to getting the most out of these mods like intake and exhaust is to have complimentary software to take advantage of all that freed up air.
Inside the car, sounds only a little louder at idle...barely noticeable, except for startup...you know it's not stock. The car seems more eager to jump forward with throttle. Highway sounds little bit louder but very comfortable, until you mash your foot and/or downshift...then the sound makes your face smile. Very addicting.:thumsup:
One complaint is the cheap looking tips. They just look cut off. But Akropovich tips are absurdly priced even though they look dope. Cyba tips look decent but don't know how much they are or if they will fit the 80mm tips. If anyone has bought aftermarket tips to use on their Performance Exhaust, please let me know which one.
Personally, I have to say, I should have added this exhaust on much sooner. That is how much I like it. :bonk:
My 2¢. Happy Driving Everyone.
VT
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