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 acceleration, …

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...

May 9, 2023 · Just finished changing the oil in my GT 2.5T engine for the first time. Was going to take pics and post but found the info here is more then adequate: Scroll down to 2.5 engine Kia Optima - …

Jan 9, 2025 · Hey everyone! I just joined the forum and wanted to share some exciting news—I recently got a new K5 and I couldn’t be happier. I’m looking forward to learning more about it, sharing tips, …

Mar 22, 2022 · This past weekend I installed the Burger Motorsports JB4 tuning chip (beta) on my 2022 K5 GT with the 2.5T engine. I used a YouTube video for quick...

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 smell …

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 cupholders? The …

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?

Jul 9, 2023 · Hi I recently got the 2025 K5 GT Line but I have no idea what fuel type to use. I've been using Costco 87 octane fuel. Does it need premium 91 or 93? Or even 89 since it's a 2.5 liter engine?

Feb 1, 2025 · K5 GTL 1.6T, K&N CAI, Custom Aluminum Turbo Inlet, JB4 Map 3 Tune, Borla Type-S Cat Back exhaust, Ark Performance GT-S Lowering Springs, E26 (94.5 Octane), JBL BassPro 12, …