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      05-02-2017, 07:43 PM   #1
bondtsai
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Most bang for the bucks to increase hp

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I have a 2011 135i M-package (N55)

I am hoping to have faster acceleration, with the safest mod option (least possibility breaking other components). Flashing the chip? Exhaust? Or others?

Thank you!
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      05-02-2017, 09:10 PM   #2
ianc
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MHD

ianc
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      05-02-2017, 09:20 PM   #3
xQx
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MHD

ianc
Then Charge-Pipe (for safety) and catless downpipes.
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2008 BMW 135i Convertible 6AT (E88 N54) M Sport
Mods: BMS DCI, VSRF 7" Intercooler, VSRF CP, VSRF v2 DP, Turbosmart BOV, JB4+BEF w/ Bluetooth module, CF Stubby Antenna, CF Eyelids, CF Kidney Grill Highlights, CF Roundels, SmartTop Module, xHP TCU Flash, LED Angel Eyes, BMS Cowl Filters
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      05-03-2017, 12:24 PM   #4
bondtsai
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Could you recommend one? (Cat-less downpipe)
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      05-03-2017, 12:59 PM   #5
bondtsai
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MHD

ianc
MHD looks promising... Doing the research now.

Thanks!

Last edited by bondtsai; 05-03-2017 at 01:18 PM.
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      05-03-2017, 01:03 PM   #6
WhatsADSM
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MHD

ianc
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Quote:
Originally Posted by xQx View Post
Then Charge-Pipe (for safety) and catless downpipes.
x2
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