2011 E63 Longtube headers build




You can do tune on the m156 for now, but there's not much power left on the table with just a tune on the e63 with the m156 motor maybe 35hp at best.
Easy stuff: Tune, Air Filters, maybe ROW boxes (lots of debate as their effectiveness).
Medium stuff: Long tube headers, mid-pipe or full exhaust system, e85 tuning, injectors
Hard stuff: Supercharger, bigger injectors, increased fuel delivery system.
Really hard stuff: Gotta start taking the engine apart to upgrade internals.
How much do you want to spend?
I decided to stop at the medium stuff.
Last edited by MintyE63; Feb 21, 2022 at 09:15 PM.
Personally, I'm not a fan of nitrous on an engine and I'd recommend to start looking at a supercharger setup if you want to get serious about big power out of the m156.
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An E55 blower won't fit on this car and a weistec system isn't cheap even though I see them pop up for sale every now and then within your budget.
I'd do the tune/ROW airboxes/BMC filters for now and just wait for a weistec blower to pop up in the used classified for now.







