How to Install the Injen SP1350 Cold Air Intake on a Kia Stinger (2018–2023 3.3L V6 Turbo)

Upgrading your Kia Stinger with the Injen SP1350 Cold Air Intake is one of the best ways to boost airflow, performance, and sound. This guide walks you through everything you need to know—from tools required to final test drive—so you can install with confidence and enjoy the benefits of your intake part #'s SP1350WB , SP1350WR , SP1350P .

Vehicle Fitment

Make: Kia

Model: Stinger

Years: 2018–2023

Engine: V6 3.3L Turbo

Tools You’ll Need

Before you begin, gather the following tools:

• 10mm ratchet & socket
• 8mm nut driver
• Allen key
• Flat blade screwdriver
• Phillips screwdriver

⚠️ Important: Do not attempt installation with the engine hot. Severe burns can result from touching hot engine components.

What’s Included in the SP1350 Kit

• (2) Y-SP1129 intake tubes
• (2) 3.00" SuperNano-Web dry filters (#1078)
• (2) 2.25” straight hoses (#3035)
• (4) #36 clamps (#4009)
• (2) M6 vibra-mounts (#6020)
• (2) Fender washers (#6010)
• (2) M6 nuts (#6002)
• (1) 10mm vacuum hose @ 5” L (#3220)
• (1) 12mm vacuum hose @ 4” L (#3078)

What’s Included in the SP1350 Kit

• (2) Y-SP1129 intake tubes
• (2) 3.00" SuperNano-Web dry filters (#1078)
• (2) 2.25” straight hoses (#3035)
• (4) #36 clamps (#4009)
• (2) M6 vibra-mounts (#6020)
• (2) Fender washers (#6010)
• (2) M6 nuts (#6002)
• (1) 10mm vacuum hose @ 5” L (#3220)
• (1) 12mm vacuum hose @ 4” L (#3078)

Step-By-Step Installation

Preparation Step 1

• Stock intake system shown.
• Loosen and remove the 2 strut braces on passenger and driver side.
• Loosen the 3 bolts holding in the OEM air box on both sides using a 10mm socket with ratchet.
• Loosen the clamp on the air box on both sides using a 10mm socket or nut driver.

Preparation Step 2

• Carefully lift up and remove the air box on both sides.
• On driver side only, loosen clamp and pull back the vacuum line from the engine.
• On driver side only, loosen clamp and pull back the crank case line from the engine.
• Loosen the clamp on the turbo using a 10mm socket or nut driver on both sides.

Preparation Step 3

• On both sides, loosen clamp and pull back the diverter valve.
• Remove the intake tube from both sides.
• Loosen the 2 bolts holding in the plastic air box inlet using a 10mm socket or wrench and remove on both sides.
• Both stock intakes removed from vehicle.

Install the Injen Components

Install Step 1

• Install the provided vibramount to the original air box mounting insert on passenger side. Secure and tighten.
• Install the provided vibramount to the original air box mounting insert on driver side. Secure and tighten.
• Install the provided 2-1/4” straight hose to the turbo on both sides with clamps. Tighten clamp on turbo only using 8mm nut driver
• Install the Driver side tube and position the bracket to the vibramount and turbo. Do not tighten

Install Step 2

• Install the provided 12mm hose to the crank case fitting and 10mm hose to the vacuum fitting.
• Attach the crank case and vacuum line to the intake tube. Attach the diverter line to the large fitting on intake tube.
• Secure the bracket on driver side using provided fender washer and nut. Position intake for the best fit and tighten clamps using 8mm nut driver.
• Install the passenger side tube and position the bracket to the vibramount and turbo. Attach the diverter line to the large fitting on intake tube. Do not tighten.

Install Step 3

• Secure the bracket on passenger side using provided fender washer and nut. Position intake for the best fit and tighten clamps using 8mm nut driver.
• Install the air filter to the passenger side and tighten using 8mm nut driver. Readjust if necessary for best fit.
• Install the air filter to the driver side and tighten using 8mm nut driver. Re-adjust if necessary for best fit.
• RE-install the strut braces to the vehicle.

Final Checks & Test Drive

• Reconnect the negative battery terminal.
• Align the intake system for best fitment and tighten all clamps and hardware.
• Start the engine and listen carefully for leaks, rattles, or odd noises.
• Perform a short road test. Correct any issues with hose connections or alignment.

Filter Maintenance

The included SuperNano-Web filters are dry, oil-free filters designed for superior airflow and filtration. To clean:

• Remove the filters and vacuum from the dirty side, or use low-pressure (15–20 psi) compressed air from the clean side at a 45° angle.
• ⚠️ Do not use cleaners or oil on the SuperNano-Web media.

Replacement filters can be purchased online from Injen if needed.

Congratulations! You’ve successfully installed your Injen SP1350 Cold Air Intake. Enjoy improved throttle response, a deeper induction sound, and the performance boost your Kia Stinger deserves.