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High Performance

This subsection is strictly devoted to discussions regarding Kia Optima Performance tuning, upgrades, and builds. All other general engine discussions should be in the Optima Engine and Technical section.
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[ALL] : Sticky Engine Failures - Share Your Experience
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147K
 by KingFatty
Sticky Engine "Simulator"
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23K
 by natelive
Sticky Steering Mode Discussion - **Dealer Change Only**
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 by Akina's K5
[ALL] : Sticky THE Oil Discussion Thread
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 by COS-16SXL
[ALL] : Sticky Exhaust Videos (feel free to add)
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 by Broncoboogieman
Turbocharger
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 by Minoan
High Mile Optimas
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 by BBQKIA
TF GDI
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 by Turbonut
My motor knocks for the first 3 seconds
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556
 by norm2500
Custom SX Exhaust, CHERRY BOMB!!!
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 by chadjoseph
Has anybody changed rear brake pads on SXL with EPB ?
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 by Papa_jc
KIA letter extending warranty for steering coupler
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 by KingFatty
[SX-T] : Intercooler or exhaust
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 by 1st timer
Engine compatibility
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 by Turbonut
2012 Optima 2.0T no power and white smoke
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486
 by Bigdaddyooo
Ambient Temperature Sensors
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165
 by Unit ZER0
[SX-L] : 18 Optima SXL Waste Gate Rattle
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 by 18OptimaSXLTurbo
AC blows hot air under heavy acceleration
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511
 by Dakinrin
How are the NEW engines after being replaced/recall???
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718
 by MyK5optimaSX
Sprint booster on Kia Optima lx
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 by K5 Optima Store
Weird issue starting.. Electrical?
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297
 by tonester
[ALL] : Practical Hood Scoop
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316
 by Unit ZER0
[ALL] : Optima 2014 1.7 diesel
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 by benny
[SX-T] : Random stalling and hesitation
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 by Turbonut
[EX-T] : High Pressure Fuel Pump Replaced - Now Turbo Fails
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 by 16f5matt
Windshield Has Strange Optical Defect?
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20K
 by Russell Kia Soul EV
Any ides
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380
 by K5 Optima Store
Stuck in "Park" & all warning lights are illuminated!
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26K
 by zalanreilly
Do performance chips really work?
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44K
 by zalanreilly
Oil catch can = check engine & high idle
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4K
 by Laguna
[SX-T] : Loud clicking
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581
 by 1st timer
2013 Kia optima
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561
 by Turbonut
First Major Issue - P0087 DTC - Fuel Rail/System Pressure Too Low
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25
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 by ps_automotive
2015 2.0 turbo - which spark plug
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515
 by K5 Optima Store
Late Model 2006 2.7 liter Optima.
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504
 by Littlei
[LX] : 2019 optima hesitates/jerks
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1K
 by Chris86
Oil Change SX & Synthetic Oil
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19K
 by Turbonut
2004 Kia Optima OBD communications fail
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609
 by K5 Optima Store
2015 spark plug replacement
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700
 by 1st timer
Serpentine belt needs replacement.
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 by KingFatty
Engine and Technical Discussion Discussion about the engine , transmission and other technical subjects.
45.4K posts
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