Injen 06-09 Eclipse 2.4L 4 Cyl. (Manual) Polished Cold Air Intake - SP1870P

The Injen SP1870P is a polished cold air intake built specifically for the 2006-2009 Mitsubishi Eclipse powered by the 2.4L four-cylinder engine and paired with a manual transmission. As part of Injen Technology's flagship SP Series, this injen cold air intake replaces the factory intake tract with smooth-flowing aluminum piping and a high-capacity filter, giving your Eclipse a deeper breath, a more aggressive tone, and documented power gains.

Key Features & Benefits

• Injen's patented MegaRam (MR) Technology and Air Fusion design tune the intake tract for real-world gains rather than a one-size-fits-all tube
• Dyno-proven gains of up to 14 horsepower and 12 lb-ft of torque on manual transmission Eclipse models
• 6061-T6 aluminum intake tubing provides a smooth, uninterrupted path for efficient airflow
• Fully serviceable Injen SuperNano-Web dry air filter — no oiling required, just clean and reinstall
• CARB EO# D-476-8 certified, so this injen intake is legal for street use in all 50 states, including California
• Backed by Injen Technology's limited lifetime warranty for long-term peace of mind
• Manufactured in Pomona, California, with attention to fit, finish, and a safe air/fuel ratio across the power band
• Optional Injen hydroshield accessory (sold separately) can be added to help shield the SuperNano-Web filter from underhood heat and moisture

Specifications

• Brand: Injen Technology
• Product: SP Series Polished Cold Air Intake
• MPN: SP1870P | SKU: INJSP1870P
• Intake tubing material: 6061-T6 aluminum, polished finish
• Filter: Injen SuperNano-Web dry element, reusable
• Transmission compatibility: Manual only
• CARB Executive Order Number: D-476-8
• Kit includes intake tube, air filter, mounting hardware, and installation instructions

Fitment

This Injen air intake is designed for 2006-2009 Mitsubishi Eclipse models equipped with the 2.4L 4-cylinder engine and manual transmission, including GS, GT, SE, Spyder GS, and Spyder GT trims. This intake is manual-transmission specific — if your Eclipse 2.4L is equipped with an automatic transmission, this particular SP1870P kit will not install correctly, and a short ram version designed for automatic models should be used instead.

What's in the Box

• Polished 6061-T6 aluminum intake tube
• Injen SuperNano-Web dry air filter
• Mounting hardware
• Installation instructions

Why Buy from ThreePiece.us

ThreePiece.us backs every Injen cold air intake order with free shipping and financing through Affirm, so you can spread out the cost of an upgrade like this SP1870P. If you're not sure whether this injen intake matches your Eclipse's exact trim or transmission, our fitment specialists are available to double-check your VIN or build before you order, helping you avoid returns and get the right part the first time.

Frequently Asked Questions

Does the SP1870P fit an automatic Eclipse?
No. This kit is engineered for manual transmission 2.4L Eclipse models only; automatic-equipped cars require a different Injen intake.

Is the air filter reusable?
Yes. The included Injen SuperNano-Web filter is a dry, fully serviceable element — simply clean it per Injen's care instructions rather than replacing it.

Is this intake street legal in California?
Yes, this intake carries CARB EO# D-476-8, indicating it's certified for street use in emissions-regulated states.

What comes with the kit?
The SP1870P includes the polished aluminum intake tube, the SuperNano-Web air filter, mounting hardware, and installation instructions.