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  1. K5OS - Performance
    Is proud to present to the Optima community The ADD W1 Version 3 Baffled Oil Catch Can (BUY NOW) Description: Oil Catch can's catch the oil and moisture in the blow-by gas that causes carbon and sludge build-up in the intake system and engine. It's advanced design assures the best...
  2. K5OS - LED & HID Lighting
    Is excited to present to the Optima forums: K5 Optima Store - RGB LED Color Changing Headlight or Fog Light Kit (BUY NOW) Description: These brand NEW high powered COB LED headlight low beam & fog light kits with built-in color changing RGB LED Demon Eyes, are designed to outperform your...
  3. K5OS - Interior & Exterior Products
    Here to present another great product for your vehicle: K5OS Spiked Aluminum Valve Stem Caps (BUY NOW) Description: High-Quality Anodized Aluminum Valve Stem Caps Available in a wide variety of different color options Designed to replace your existing valve stem caps A great gift to give...
  4. K5OS - Suspension
    Is excited to present another great product 2011-2020 Kia Optima BC Racing BR Coilovers (BUY NOW) Description: BC Racing has come through to present their premium line of coilovers for Kia and Hyundai vehicles. The BC Racing BR series coilovers are the perfect choice for street driving with a...
  5. K5OS - Suspension
    Is happy to present the: Kia Optima/Hyundai Sonata Megan Racing EZII Series Coilovers (BUY NOW) Description: These EZII Series of coilovers offer a more conservative amount of adjustability, without sacrificing quality or performance Budget friendly with plenty of options for ride height and...
  6. K5OS - 2016-2020 Kia Optima Products
    Presenting to the community our newest item: The 2016-2018 OEM Kia Optima Mud Guard 4 Pc Sets (BUY NOW) Item Description: Brand new Genuine OEM Kia Mud Guard Flaps 4pc Set Includes 4 pcs Front left, Front right, Rear left & Rear right Helps prevent dirt, snow, mud & other debris from being...
  7. K5OS - 2016-2020 Kia Optima Products
    Is proud to present to the Optima Forums: 2016-2020 Kia Optima - Eibach Lowering Springs (BUY NOW) Description: These Eibach lowering springs improve your vehicle's looks and performance Lower your vehicle's center of gravity, reducing body roll in the turns, dive under braking, squat during...
  8. K5OS - Carbon Fiber Products
    Is excited to bring to the Optima community, the: 2011-2020 Kia Optima Carbon Fiber Steering Wheel (BUY NOW) Description: This is a fully customized genuine Kia Optima OEM steering wheel Your OEM wheel controls and components transfer from your wheel, to the new wheel The product we are...
  9. K5OS - 2016-2020 Kia Optima Products
    Is excited to finally bring to the Optima community: 2016-2018 Kia Optima Rear Sequential Bumper LED Light (BUY NOW) Description: Separate your new 2016-2018 Kia Optima from the rest with these brand new custom sequential bumper LED lights LEDs are installed in OEM factory bumper reflectors &...
  10. K5OS - 2016-2020 Kia Optima Products
    Is here to introduce to the 2016-2020 Optima community, the: OSRAM XENARC 66340 CBI D3S HID Bulbs (BUY NOW) Description: Replace your stock HID bulbs with a pair of these high quality Osram D3S bulbs & brighten up the road These OSRAM bulbs offer more lumens than the once industry-standard...
  11. K5OS - 2016-2020 Kia Optima Products
    Is here to introduce to the 2016-2020 Optima community, the: Morimoto XB D3S HID Bulbs (BUY NOW) Description: Replace your stock HID bulbs with a pair of these high quality Morimoto D3S bulbs Easily change out the boring yellowish headlight bulb color you have now These are a direct...
  12. K5OS - Interior & Exterior Products
    Is here to present another great product The SickSpeed Billet Aluminum Radiator Cap (BUY NOW) Description: New high-quality Billet Radiator Cap cover from Sickspeed Installs over your existing OEM factory radiator cap Crafted from billet aluminum with hard anodized for a lasting finish...
  13. K5OS - 2016-2020 Kia Optima Products
    Is excited to present another great product to the forum: 2016-2020 Kia Optima 1.6T Injen Intake System (BUY NOW) Description: Injen Technology is here to bring the first intake for the 2016-2020 Kia Optima 1.6T This Short Ram Injen Intake system features 3.25" mandrel Bent 6061-T6 aluminum...
  14. K5OS - Interior & Exterior Products
    Is proud to present another great product to the community: 2011-2015 Kia Optima Wireless Phone Charging Kit (BUY NOW) Description: No longer will you need to mess with charging cords, throw your phone on the pad & watch your battery instantly start charging Non-slip charging mat holds your...
  15. K5OS - 2016-2020 Kia Optima Products
    Is proud to present another great new product: The 2016-2020 Kia Optima 1.6T BOV Sound Plate (BUY NOW) Description: Specifically designed to fit the tight space for your 2016-2020 Kia Optima turbo Comes in 5 different colors (red, black, blue, purple, and silver) New stiffer bypass valve...
  16. K5OS - 2016-2020 Kia Optima Products
    Is excited to bring to the Optima community: The 2016-2020 Kia Optima K&N Panel Replacement Air Filter (BUY NOW) Description: Designed to increase horsepower and acceleration while providing excellent filtration 50,000 miles between cleanings depending on driving conditions Simple drop in...
  17. Engine and Technical Discussion
    Hi, I came from the Audi/VW world to the Kia world with my 2015 Optima. I really like the car, but there are a few electronic changes I would like to make if possible. My question is this: is there a system that can be used to make changes to the central ECU system of the car, i.g. changing...
  18. 3rd Generation Optima (2011 - 2015)
    Former Lamborghini designer reportedly headed to Hyundai "​Luc Donckerwolke (pictured above) only left his position as the Director of Design for Bentley in early June, but he might have already had a new gig lined up as he was walking out the door. Donckerwolke is reportedly teaming up with...
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