Cold Air Intake Kit for 2004-2007 Cadillac CTS-V V8

The first-generation Cadillac CTS-V (2004–2007) packed a genuine Corvette-derived V8 — the LS6 (2004–2005, 400 hp) and LS2 (2006–2007, 400 hp) — into a luxury sport sedan chassis. While GM's engineers did an admirable job fitting a 5.7L or 6.0L V8 into the CTS engine bay, the factory airbox was designed with NVH (Noise, Vibration, Harshness) standards more appropriate for a Cadillac than a Corvette. The result: a restrictive, heavily baffled intake that muffles the very thing that makes the CTS-V special — the sound of a 400-horsepower pushrod V8 breathing at full throttle.

This Flashark intake replaces the restrictive factory assembly with a 6061 aluminum intake pipe and a high-flow reusable cotton cone filter, separated from the exhaust manifold by a formed steel heat shield. On a stock LS6/LS2, expect 5–12 WHP with the most noticeable improvements being throttle response and the transformation of the engine note from muted luxury-car silence to the deep, resonant induction growl these engines are famous for. The LS architecture responds well to intake upgrades — not because the factory design is bad, but because GM prioritized cabin quiet over engine breathing.

Installation takes 45–75 minutes using basic hand tools. The kit uses factory mounting points and the OEM MAF sensor housing, requiring no cutting, drilling, or permanent modification. For CTS-V owners who want their car to sound like the Corvette engine it actually has, this is the most cost-effective starting point.

Key Features

6061 aluminum intake pipe — mandrel-bent for smooth internal airflow with no crush-bent restrictions; polished finish provides a clean, factory-plus appearance in the engine bay

High-flow reusable cotton cone filter — dual-layer pleated cotton gauze with filter captures contaminants while flowing significantly more air than the factory paper panel filter; washable and reusable — service every 15,000–20,000 miles

Direct bolt-on design — uses OEM MAF sensor housing and factory mounting points; no cutting, drilling, or permanent modification to the vehicle

Compatible with LS6 and LS2 — designed for the OEM MAF-style intake layout shared by both the 2004–2005 LS6 and 2006–2007 LS2 CTS-V platforms

Improved throttle response — the larger-diameter, straight-path intake tube eliminates the factory airbox's multi-chamber baffling that creates airflow hesitation at tip-in

Authentic LS V8 induction sound — the open-element filter and rigid aluminum pipe produce the deep, resonant intake growl these pushrod V8S are legendary for; quiet at cruise, authoritative under throttle

Complete kit — includes intake pipe, cone filter, heat shield, silicone couplers, stainless steel hose clamps, and all required mounting hardware

Specifications

Brand: Flashark
SKU: FLIS25077
Compatible Vehicles: 2004–2007 Cadillac CTS-V (LS6 5.7L & LS2 6.0L V8)
Pipe Material: 6061 aluminum 
Pipe Diameter: 4 inches (101mm) 
Pipe Wall Thickness: 1.5mm
Filter Type: Dry filter
Filter Color: Red
Heat Shield Material: Formed steel
Coupler Material: 3-ply reinforced silicone
Clamp Type: Stainless steel worm-gear hose clamps
Installation Difficulty: no cutting, drilling, or permanent modification
Installation Time: 45–75 minutes
Weight: Approximately 5 lbs

Package Includes

1 × Polished 6061 aluminum mandrel-bent intake pipe (3.5" / 89mm diameter, approximate)
1 × Red dual-layer oiled cotton gauze cone air filter (washable & reusable)
1 × Formed steel heat shield (black powder-coated)
2 × 3-ply reinforced silicone couplers (black)
4 × Stainless steel worm-gear hose clamps
All required mounting hardware (bolts, washers, nuts, brackets)
Installation instructions (print)