Sale

Air and Fuel Air Cleaners, Filters, Intakes and Components

Sinister Diesel

Sinister Diesel Cold Air Intake 01-04 Chevy / GMC Duramax 6.6L LB7

$675.99 $519.99 Save $156.00

SKU: S004 SD-CAI-LB7

Special Order
Special Order
Ships in 4–6 weeks
Free Shipping over $200
$100 Minimum Order
Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Easy — 1–2 hours

Overview

The Sinister Diesel SD-CAI-LB7 cold air intake features precision CNC mandrel-bent aluminum tubing and an oversized reusable cotton filter, designed to improve throttle response and turbo spool-up for 2001-2004 Duramax 6.6L LB7 engines. It is finished in polished and powder-coated Sinister Blue and includes all necessary installation hardware.
Show original supplier description

Part #: SD-CAI-LB7

The more air you can get to your truck's engine the better and more efficiently it runs, and factory air intakes just can't stand up to the Sinister Diesel 2001-04 Duramax 6.6L cold air intake in this regard. This cold air intake kit significantly improves throttle response and turbo spool up, and it's great for daily driving, towing and even racing applications!, If you're looking to get more performance and fuel economy from your 6.6L Duramax LB7 V-8, then the Sinister Diesel 2001-04 Duramax 6.6L cold air intake is the way to go. The aluminum tubing features CNC mandrel bending for smooth airflow and excellent durability, and it also comes with long-lasting reusable cotton filter media that is oversized to maximize airflow. This tubing is polished and powder coated in the signature Sinister Blue helping to combat corrosion and adding a great look under the hood., The 2001-04 Duramax 6.6L cold air intake has been designed, engineered and fabricated by Sinister Diesel ensuring the highest level of performance and quality, and these kits come with all mounting hardware required for the installation as well as silicone couplers designed for maximum durability. This kit has been developed for easy, drop-in installation with basic hand tools and minimum experience., Give a real boost to your truck'performance and save on fuel using this Sinister Diesel 2001-04 Duramax 6.6L cold air intake!, Includes:CNC Mandrel Bent Aluminum Intake Tube, Reusable Cotton Media Filter, Installation Hardware Check website for for Pre-Filter.

Cold Air Intake for 2001-2004 Chevy/GMC Duramax 6.6L LB7.

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

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandSinister Diesel
Part NumberS004 SD-CAI-LB7

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

Buy with Confidence

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.

View Full Return Policy

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.

View Full Shipping Policy