Weapon R 307-158-101 Secret Weapon Intake for 1994-2003 Buick Century 3.1L V6
- Regular price
-
$251.95 - Regular price
-
- Sale price
-
$251.95
In Stock: 2
Orders by 1pm PST ship same business dayFree Shipping w/2-4 Day Delivery
Authorized Dealer
Fitment Guarantee
90-Day Free Returns
Couldn't load pickup availability
Product Specification:
SKU:WPN307-158-101
MPN: 307-158-101
Weight: 4.6 lb
Inventory: 2
Type: Cold Air Intakes
Upgrade your engine with the Weapon R 307-158-101 Secret Weapon Intake, tailored for 1994-2003 Buick Century, Chevrolet, Oldsmobile, and Pontiac models. Boost airflow with CNC-bent 6061 aluminum tubing and a high-density reusable filter for enhanced performance.
Includes all necessary components for easy installation.
Vehicle Fitment
- 1994-2003 Buick Century - Custom, Special, Limited; 3.1L V6
- 1992-2003 Buick LeSabre - Custom, Limited; 3.8L V6
- 1992-2003 Buick Regal - Custom, Gran Sport, Limited, Olympic Gold Edition, GS, LS, GSE, LSE; 3.8L V6
- 1992-1999 Buick Riviera - Luxury, Base; 3.8L V6
- 2000-2005 Chevrolet Impala - Base, LS, LS Sport, Police, SS; 3.4L/3.8L V6
- 1995-2001 Chevrolet Lumina - Base, LS, LTZ; 3.1L/3.4L V6
- 1998-2003 Chevrolet Malibu - Base, LS; 3.1L V6
- 1995-2003 Chevrolet Monte Carlo - Z34, LS, SS and listed special editions; 3.4L/3.8L V6
- 1994-1998 Oldsmobile Achieva - S, SL, SC; 3.1L V6
- 2001-2003 Oldsmobile Aurora - Base; 4.0L V8
- 1997-1999 Oldsmobile Cutlass - Base, GL, GLS; 3.1L V6
- 1995-1996 Oldsmobile Cutlass Ciera - Base; 3.1L V6
- 1988-2003 Pontiac Bonneville - LE, SE, SSE, SSEi, SLE; 3.8L V6
- 1994-2003 Pontiac Grand Am - SE, GT and listed special trims; 3.1L/3.4L V6
- 1989-2004 Pontiac Grand Prix - Base, LE, SE, McLaren, STE, GT, GTP and listed GT1/GT2 trims; 3.1L/3.4L/3.8L V6
Fitment Notes
- Vehicle-specific Secret Weapon intake; compatibility is dependent on the listed engine and application.
- Fitment is for the U.S. applications identified in the validated catalog data.
- Drivetrain-specific restrictions are not identified in the available manufacturer/catalog fitment data; verify the exact vehicle configuration before installation.
- Do not apply this part to other engines or vehicle applications solely because the vehicle model appears similar.
Features
- Weapon-R Secret Weapon air intake system designed to increase intake airflow.
- Patented dual-velocity airflow concept is engineered to improve air volume and velocity.
- CNC mandrel-bent 6061 aluminum intake tubing.
- Polished aluminum finish for a high-quality engine-bay appearance.
- SW1 Secret Weapon air filter incorporates a tuned velocity stack.
- Velocity-stack design is engineered to reduce intake turbulence.
- Open-pore, high-density reusable foam filter media.
- Application-specific intake design for the listed GM vehicles and engines.
- Designed to improve intake airflow compared with conventional factory intake configurations.
- Weapon-R patented Secret Weapon intake technology, U.S. Patent No. 7,263,961B2.
Specifications
- Brand: Weapon-R
- Part Number: 307-158-101
- Product Line: Secret Weapon
- System Type: Short Ram Air Intake
- Tube Material: 6061 Aluminum
- Tube Finish: Polished
- Filter: SW1 Secret Weapon reusable foam filter
- Overall Package Dimensions: 20.00 in L x 8.50 in W x 8.20 in H
- Package Weight: 4.60 lb
- Units Per SKU: 1
Included Components
- 1x Polished aluminum intake pipe
- 1x Secret Weapon air filter
- 1x Hardware package
- 1x Installation instruction set
Product Description
The Weapon-R 307-158-101 Secret Weapon intake is a vehicle-specific performance air intake designed for a broad range of Buick, Chevrolet, Oldsmobile, and Pontiac applications using the listed V6 and V8 engines. The system uses polished 6061 aluminum intake tubing and Weapon-R's Secret Weapon filter technology to provide a less restrictive airflow path while adding a performance-oriented appearance and intake sound.
Its SW1 filter incorporates a tuned velocity stack designed to increase airflow velocity and reduce turbulence before air reaches the engine. The intake is offered as an application-specific system rather than a universal intake, so the exact vehicle year, engine, and configuration should be matched against the fitment list before installation.
The 307-158-101 is intended for enthusiasts upgrading the factory intake system on the specified GM platforms. Installation is designed around the listed vehicle applications, with the intake, filter, hardware, and installation instructions supplied as part of the system.

You may also like
-
aFe 56-70016D Takeda Momentum Cold Air Intake for 13-20 Accord/Acura TLX 3.5L
aFe 56-70016D Takeda Momentum Cold Air Intake for 13-20 Accord/Acura TLX 3.5L- Regular price
-
$333.95 - Regular price
-
$483.75 - Sale price
-
$333.95
Add to cart –31% -
aFe Power 50-70063D Momentum HD Cold Air Intake for 15-23 Toyota Hilux/Fortu
aFe Power 50-70063D Momentum HD Cold Air Intake for 15-23 Toyota Hilux/Fortu- Regular price
-
$385.95 - Regular price
-
$563.75 - Sale price
-
$385.95
Add to cart –32% -
Spectre 9028 Cold Air Intake System Kit for 11-23 Challenger/Charger/300 3.6L V6
Spectre 9028 Cold Air Intake System Kit for 11-23 Challenger/Charger/300 3.6L V6- Regular price
-
$217.99 - Regular price
-
- Sale price
-
$217.99
Add to cart -
AEM 21-721C Cold Air Intake for 2011-2013 Mini Cooper S/John Cooper Works 1.6L
AEM 21-721C Cold Air Intake for 2011-2013 Mini Cooper S/John Cooper Works 1.6L- Regular price
-
$629.99 - Regular price
-
- Sale price
-
$629.99
Add to cart -
aFe 59-20003 Turbo Inlet Pipe for 2017-2020 Ford Raptor 3.5L EcoBoost
aFe 59-20003 Turbo Inlet Pipe for 2017-2020 Ford Raptor 3.5L EcoBoost- Regular price
-
$374.95 - Regular price
-
$512.50 - Sale price
-
$374.95
Add to cart –27% -
Injen IS1341BLK Black Short Ram Intake for 2013-17 Hyundai Veloster Turbo 1.6L
Injen IS1341BLK Black Short Ram Intake for 2013-17 Hyundai Veloster Turbo 1.6L- Regular price
-
$348.93 - Regular price
-
$331.49 - Sale price
-
$348.93
Add to cart -
aFe Power 56-70038R Takeda Momentum Cold Air Intake for 2018-25 Kia Stinger
aFe Power 56-70038R Takeda Momentum Cold Air Intake for 2018-25 Kia Stinger- Regular price
-
$443.95 - Regular price
-
$652.50 - Sale price
-
$443.95
Add to cart –32% -
aFe 54-76005 Momentum GT Cold Air Intake w/ Pro 5R for 16-23 Toyota Tacoma V6
aFe 54-76005 Momentum GT Cold Air Intake w/ Pro 5R for 16-23 Toyota Tacoma V6- Regular price
-
$352.95 - Regular price
-
$512.50 - Sale price
-
$352.95
Sold out -
aFe 56-70016S Takeda Momentum Dynamic Air Scoop for 2015-2020 Acura TLX
aFe 56-70016S Takeda Momentum Dynamic Air Scoop for 2015-2020 Acura TLX- Regular price
-
$66.95 - Regular price
-
$75.00 - Sale price
-
$66.95
Add to cart –11% -
aFe Power 54-72203-SR Red Dynamic Air Scoop for 15-23 Dodge Challenger
aFe Power 54-72203-SR Red Dynamic Air Scoop for 15-23 Dodge Challenger- Regular price
-
$66.95 - Regular price
-
$75.00 - Sale price
-
$66.95
Sold out










