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  1. 2025 2.5L N/A THOUGHTS? OCTANE CHOICE? | Kia K5 Forum

    Jan 16, 2025 · what’s up fellow k5 owners. I recently upgraded from a 22 GT-L to a 25 GT-L with the new non turbo engine. I originally noticed the car was pretty sluggish under initial …

  2. check engine p0507 | Kia K5 Forum

    Dec 6, 2024 · hey k5 owners, I have a GT-Line with 54K miles on it and recently just got a check engine light. Code P0507 P0507 "Idle air control system RPM had high...

  3. Any Mods to do on 25' K5 GT for Someone Young | Kia K5 Forum

    Jan 9, 2025 · I recently got a 2025 Kia K5 GT in wolf grey and I am wondering what mods I should do that won't void the warranty and sacrifice reliability. I want to get tints done and maybe get …

  4. Cup Holders | Kia K5 Forum

    May 6, 2025 · Does anyone know how I can convert the square cup holders in the 2025 Kia K5 to round cupholders? Are there any molds available somewhere that I can just insert into the …

  5. Fuel Smell/Leak.....Help! | Kia K5 Forum

    May 20, 2025 · I appear to have some kind of fuel leak on my K5. I never can smell anything when parked. Fuel smell only shows up when I have driven a bit, return to the car, take off and …

  6. Cold air intake for a k5 gt - Kia K5 Forum

    Nov 26, 2023 · I just install a borla exhust system on my k5. I am now looking to add a cold air intake. Is there a system to add to it for a 2.5 litter engine. I have...

  7. oil filter housing | Kia K5 Forum

    Aug 15, 2025 · I purchased a 2024 used K5 with 6K miles last fall from the dealer. It supposedly had been serviced by the dealer. Yesterday, I did my first DYI oil change and both the filter …

  8. Oil Filter | Kia K5 Forum

    Jan 5, 2025 · I have a 2025 K5 and can't find an oil filter. I have asked the dealership but have not heard back. Is the filter the same as the filter for the 2024 K5?

  9. Technical Service Bulletin: Trunk Lid and C-Pillar... - Kia K5 Forum

    Mar 28, 2024 · This bulletin provides information to inspect the rear trunk lid chrome garnish trim and the C-Pillar chrome garnish trim on certain K5 vehicles produced from May 1, 2023 …

  10. Tuning | Kia K5 Forum

    Jun 10, 2025 · Is the JB4 the only way to tune the k5 GT? I have a local tuner in my area but not sure if he’ll be able to tune my car.