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bmw 12/28/2011
1998 BMW 323is Base 6 Cyl 2.5L - Engine
What can I put in the engine ( parts wise) to gain more horse power?
How to gain more horse power?
2 Answers
  • Jimm
    Jimm 12/31/2011
    There are no magic parts to place in the engine to gain power. Try to first have the engine tested for compression and general overall health (stae of tune). Next, examine and improve the exhaust and intake systems for less restriction - better flowing exhaust system and less restrictive intakes will cost around $1000.00 - on up. Talk with other BMW owners to see what they have used and might recommend.
    Realize there is no 'free lunch' - what you pay for in terms of additional power you may lose in fuel mileage or engine longetivity.
  • don
    don 12/31/2011
    up grade your thottle body...............

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