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  1. UMI Performance

    BUILD THREAD UMI's 1978 Cutlass

    UMI Performance is proud to announce our latest project. Follow along as we build this ultra-clean 1978 Cutlass. We’ll start with our best-selling Stage 2 kit, spice it up with some modern wheels and tires, then finish it off with LS Power. The end result will be a capable cruiser built to...
  2. UMI Performance

    UMI Launches The Power Tour Package Suspension System!

    Great to hear! I will send over some additional lowered images here shortly. Those are Weld S77 wheels, 18" with a 5.25" backspacing.
  3. UMI Performance

    UMI Launches The Power Tour Package Suspension System!

    Here's our Green Machine on the 2" lowering springs, I also have other photos of a few Cutlass we must still need to add to the site, I can email those if you want to see- [email protected]...
  4. UMI Performance

    UMI's 4th of July Sale- 10% off and Free Shipping!

    Happy Birthday America!
  5. UMI Performance

    UMI Launches The Power Tour Package Suspension System!

    We are proud to introduce our Power Tour Package. This kit includes everything you need to go from tired and frustrated after five miles to happy and refreshed after a full day on tour. We start with caster corrected tubular a-arms and poly bushing trailing arms. This solid foundation allows the...
  6. UMI Performance

    UMI Launches The Power Tour Package Suspension System!

    We are proud to introduce our Power Tour Package. This kit includes everything you need to go from tired and frustrated after five miles to happy and refreshed after a full day on tour. We start with caster corrected tubular a-arms and poly bushing trailing arms. This solid foundation allows the...
  7. UMI Performance

    Going BLACK - UMI's Revised Sway Bar Mounts

    REVISED BLACK SWAY BAR MOUNTS These revised anodized black ultra heavy duty machined sway bar brackets from UMI Performance are the cherry on top of your suspension. Machined in-house, these brackets reduce flex which allows your sway bar to do its job efficiently. They come with either Red...
  8. UMI Performance

    Going BLACK - UMI's Revised Sway Bar Mounts

    These revised anodized black ultra heavy duty machined sway bar brackets from UMI Performance are the cherry on top of your suspension. Machined in-house, these brackets reduce flex which allows your sway bar to do its job efficiently. They come with either Red or Black grease-able...
  9. UMI Performance

    UMI Year End Sale Starts Now!

    Correct. We offer a full line of G-Body products and all on sale. Items in e-mail our new releases, unfortunately nothing new for the G-Body for Christmas. Merry Christmas, Ryan
  10. UMI Performance

    UMI Year End Sale Starts Now!

    Merry Christmas from all of us at UMI!
  11. UMI Performance

    UMI Year End Sale Starts Now!

    Merry Christmas from all of us at UMI!
  12. UMI Performance

    Best front tubular control arms?

    Hey guys, thanks for the UMI comments. As a few mentioned above you want to make sure you get a-arms that feature some geometry changes in them, otherwise you're just stalling a-arms that look new and add no performance: no change no gain. I can't speak for all a-arm manufacturers but here's...
  13. UMI Performance

    How Much Frame Notch to Fit 15x10’s?

    That is tough, that could possibly clear with out notching. But for notching you want to notch the frame back until it is even with the inner wheel wells. Going deeper won't help because the inner wheel well is in the way. We the UMI kit we run a 11" wheel and 315 tire on a 79.
  14. UMI Performance

    UMI Year End Sale is here- 12 Days to Save

    UMI year end savings are here. We would like to wish all of you a very Merry Christmas and we are looking forward to working with you in 2018. New Products! UMI's new Corner Max Kits! Extreme front end grip, geometry corrected, height adjustable, 10 degrees of caster- All in one kit...
  15. UMI Performance

    UMI Year End Sale is Here! 12 Days to Save

    UMI year end savings are here. We would like to wish all of you a very Merry Christmas and we are looking forward to working with you in 2018. New Products! UMI's new Corner Max Kits! Extreme front end grip, geometry corrected, height adjustable, 10 degrees of caster- All in one kit...
  16. UMI Performance

    Black Friday Specials are here! Through 11-27

    UMI Black Friday specials are here! New Products! UMI's new Corner Max Kits! Extreme front end grip, geometry corrected, height adjustable, 10 degrees of caster- All in one kit! 1964-1967 GM A-Body Corner Max Kit 1968-1972 GM A-Body Corner Max Kit UMI's new Stage 1.5 handling kit...
  17. UMI Performance

    UMI Black Friday Specials! And New Products

    UMI Black Friday specials are here! New Products! UMI's new Corner Max Kits! Extreme front end grip, geometry corrected, height adjustable, 10 degrees of caster- All in one kit! 1964-1967 GM A-Body Corner Max Kit 1968-1972 GM A-Body Corner Max Kit UMI's new Stage 1.5 handling kit...
  18. UMI Performance

    UMI Labor Day Savings- 10% off & Free Shipping

    Hello Everyone, A little late posting this but some savings at UMI this weekend for anyone looking. We hope you all have a wonderful Labor Day weekend

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