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  1. **NEW** MPP "Triple-L" Ride Height Adjustment Kit For R1T/R1S - Lower/Lift/Level

    We just updated the BOM and will start including the T30 right-angle tools with the kits!
  2. **NEW** MPP "Triple-L" Ride Height Adjustment Kit For R1T/R1S - Lower/Lift/Level

    Those are the settings I would start with! Those wheels look awesome. It sounds like you may have a little project for your long weekend. Best of luck and have fun!
  3. **NEW** MPP "Triple-L" Ride Height Adjustment Kit For R1T/R1S - Lower/Lift/Level

    Thank you everyone for your support and feedback! We have seen some very creative methods to access the front torx bolt and I must say, it may result in me buying some new tools. Production update: We have about 30% of the kits left from the second production run and plan to produce more in...
  4. KO3 vs KO2 Tires Comparison - Side by Side Look and Technical Analysis

    We are running K03 and K02 on our R1T and Cybertruck and the experience on the road is more or less the same between the tires. They are surprisingly efficient and quiet! This really shocked me because I grew up with the old-school version of these tires that rumbled down the road. Color me...
  5. Is this normal? Side Body Panel above lightbar "Flex"

    I just ran down and tried on our truck and it bends about 1/10th as much as yours, with more pressure applied. I haven't had the fender off before to see what is underneath, but maybe there is a loose or missing mounting bolt!
  6. Possible Front-Left Wheel Bearing Issue

    It was said earlier, but the easiest way to figure out if it is wheel bearing or tire noise is to gently swerve side-to-side as you drive. The growling should get quieter and loud depending on which side of the vehicle is loaded up. It sounds like you're getting new tires today, so if the noise...
  7. **NEW** MPP "Triple-L" Ride Height Adjustment Kit For R1T/R1S - Lower/Lift/Level

    Another smooth installation! Thank you everyone for your feedback and support, we really appreciate it. We have seen a good mix of Rivian owners using these to lower, level, or raise the truck.
  8. **NEW** MPP "Triple-L" Ride Height Adjustment Kit For R1T/R1S - Lower/Lift/Level

    Thanks for the great feedback Matt! Heat-protection such as that fiberglass is a great idea. We've heard feedback from a few others now and all sounds good so far. The one exception is that Matt had one OE upper control arm which didn't seem to quite thread in, so we'll make the bolt hole...
  9. Rivian R1S & R1T Delivery Checklist

    Great list! One other item comes to mind - our bluetooth speaker was stuck (still is) and can' t be removed. Sounded like that happened to a few others as well. Might be worth adding to your list!
  10. KO3 vs KO2 Tires Comparison - Side by Side Look and Technical Analysis

    The 275/65/20 KO3 is already available, we have them on our truck! So far no complaints. For reference, the highway efficiency at 75mph (conserve mode, lowest ride height, HVAC off, 60psi), is around 2.15 mi/kWh
  11. **NEW** MPP "Mega Terra" Forged Wheels

    Just to be sure, we checked it! Now we need to do something about this annoying compressor flap door that's always opening!!
  12. **NEW** MPP "Mega Terra" Forged Wheels

    We are running an identical tire size to stock but with a 1-inch wider wheel. The height of the wheel/tire assembly if you were to lay it on its side is unchanged.
  13. **NEW** MPP "Mega Terra" Forged Wheels

    Thank you so much! We have more photos coming from our Montreal photoshoot with the legendary Jordan Lenssen. Here's one of the teasers he sent us:
  14. **NEW** MPP "Mega Terra" Forged Wheels

    Thanks! About the width - it gets a bit technical, but here's a copy-paste on that section from the page: In addition, we elected to go with a wider wheel rather than Rivian’s quite narrow 8.5″ selection for several reasons: A wider wheel provides enhanced steering response and grip on hard...
  15. **NEW** MPP "Mega Terra" Forged Wheels

    Thank you very much everyone for the feedback! I wish we could do $250 per wheel! The $250 is just a single pre-order deposit to lock in the discount (order qty of 1 is all that is needed to lock in up to 5 wheels at the pre-order price). We'll update the page to add clarity on that as we've...
  16. Mountain Performance Products L3

    The factory suspension LIVES in the bumpstops in low and lowest. The main inspiration for this product was to raise the front slightly so that low mode was tolerable, and so that the car "lands" on both bumpstops evenly. It's very annoying when the front goes solid followed by the rear...
  17. **NEW** MPP "Mega Terra" Forged Wheels

    Hi Everyone! We’re thrilled to announce our brand-new Rivian wheels! We spent months on this wheel design in-house at MPP – aiming for something motorsport inspired, aerodynamic, functional, and clean. We really love the way these Rivian wheels came out, and hope you do too! These wheels have...





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