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Performance

Anything to do relating to performance and BMW.

2003 topics in this forum

  1. fuel saver

    • 12 replies
    • 3312 views
  2. M44/M42 Help

    • 1 reply
    • 1321 views
  3. K & N air filter 1 2

    • 28 replies
    • 7461 views
  4. E30 325i

    • 8 replies
    • 2351 views
  5. e30 diff conversion

    • 13 replies
    • 6888 views
    • 8 replies
    • 6009 views
  6. Exhaust Opinions

    • 7 replies
    • 2187 views
    • 25 replies
    • 8212 views
  7. Considering upgrade

    • 8 replies
    • 2598 views
  8. e30 Schnitzer-Gavins Magic 1 2

    • 35 replies
    • 7833 views
  9. 135 Race Car Build

    • 3 replies
    • 1373 views
  10. E12 1979 528i manual

    • 3 replies
    • 1294 views
  11. e30 sump guard

    • 6 replies
    • 2096 views
  12. E39 540 Cat removal

    • 16 replies
    • 5004 views
  13. LS1/LS2 Conversion

    • 14 replies
    • 5104 views
  14. Bmw e30 needs upgradesssss

    • 22 replies
    • 4406 views
  15. Heat Shielding

    • 5 replies
    • 2424 views
  16. E30 M3 Evo front Splitter

    • 5 replies
    • 4883 views
  17. m50 injectors into m20?

    • 8 replies
    • 4378 views
  18. 320i E30 ECU Chip

    • 4 replies
    • 2499 views
  19. M50NV cam swap

    • 5 replies
    • 3385 views
  20. e30 323i engine

    • 3 replies
    • 1545 views
  21. Chiptuning Chips

    • 24 replies
    • 5927 views
  22. Exhaust ports

    • 9 replies
    • 2427 views
    • 8 replies
    • 4380 views
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