Air and Fuel› Air Cleaners, Filters, Intakes and Components

Ktuned

3.5-Inch Cold Air Intake

$79.99

SKU: KTD-CA8-35F

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The K-Tuned Cold Air Intake Upgrade Piece is designed for the 8th and 9th generation Honda Civic Si models when equipped with an RBC manifold. This component is an upgrade only and requires a Flashpro or KTuner for proper operation.
Show original supplier description
The K-Tuned 3.5" Cold Air Intake (KTD-CA8-35F) is a performance upgrade designed specifically for the 8th generation Honda Civic Si (2006-2011) equipped with the K20Z3 engine. This intake system features a 3.5-inch diameter pipe to significantly increase airflow to the engine compared to the stock setup. It is designed as an upgrade piece, intended to be used with an existing K-Tuned Short Ram Intake for the 8th Gen or 9th Gen w/RBC Manifold. Installation requires either a Hondata Flashpro or KTuner tuning device to properly manage the engine's air-fuel ratio and optimize performance. It is important to note that this is an upgrade part and not a complete kit. The KTD-CA8-35F does not fit the base model Civic Si. Additionally, users with a 3-inch Short Ram intake will need to purchase a separate 3.5-inch air filter. V-Stack style filters may not fit behind the headlights. For complete intake kit options, refer to the 8th Gen Intake Short Ram and CAI or 9th Gen RBC Intakes Short Ram and CAI.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

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Specifications

BrandKtuned
Part NumberKTD-CA8-35F
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
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Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

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