# FAST LSX Manifold 103MM Gen III LS Rect Port - Black

FAST has developed the industry’s first polymer tunnel ram-style intake manifold, ideal for generating maximum power in boosted and naturally aspirated engines. Available for rectangular port LS3 and raised rectangular port LS7 engines, the FAST LSXHR FAST-RAM Intake Manifold features removable stacks of various lengths, so racers can experiment with finding which combination makes the most power in their application. Its polymer construction is not only lightweight and high strength, but also virtually eliminates power-robbing heat soak that occurs with commonly available aluminum intake manifolds. Testing has shown an average 30-horsepower gain between 5,000 and 7,500 RPM over competitor tunnel ram intake manifolds. The FAST LSXHR FAST-RAM Intake Manifold is designed specifically with boosted applications in mind and is rated for up to 45psi of continuous pressure. Compound fuel injector angle aims the spray pattern for ideal atomization, resulting in maximum power production and superior drivability. A reversible top allows for forward- or firewall-facing throttle body installations. The intake manifold also features two nitrous nozzle bosses per runner for clean and easy direct port system installations. Its 103mm throttle body opening can be port matched to 105mm.

This Part Fits:

Year

Make

Model

Submodel

2007-2014

Cadillac

Escalade

Base

2011-2014

Cadillac

Escalade

Luxury

2008-2014

Cadillac

Escalade

Platinum

2011-2014

Cadillac

Escalade

Premium

2007-2014

Cadillac

Escalade ESV

Base

2011-2014

Cadillac

Escalade ESV

Luxury

2008-2014

Cadillac

Escalade ESV

Platinum

2011-2014

Cadillac

Escalade ESV

Premium

2007-2013

Cadillac

Escalade EXT

Base

2011-2013

Cadillac

Escalade EXT

Luxury

2011-2013

Cadillac

Escalade EXT

Premium

2007-2009

Chevrolet

Avalanche

LT

2007-2009

Chevrolet

Avalanche

LTZ

2010-2015

Chevrolet

Camaro

SS

2008-2013

Chevrolet

Corvette

Base

2010-2013

Chevrolet

Corvette

Grand Sport

2007-2013

Chevrolet

Silverado 1500

LT

2007-2013

Chevrolet

Silverado 1500

LTZ

2014-2017

Chevrolet

SS

Base

2007-2009

Chevrolet

Suburban 1500

LT

2007-2009

Chevrolet

Suburban 1500

LTZ

2008-2009

Chevrolet

Tahoe

LTZ

2007-2013

GMC

Sierra 1500

Denali

2007-2013

GMC

Sierra 1500

SLE

2007-2013

GMC

Sierra 1500

SLT

2007-2014

GMC

Yukon

Denali

2007-2014

GMC

Yukon XL 1500

Denali

2007-2009

GMC

Yukon XL 1500

SLE

2007-2012,2014

GMC

Yukon XL 1500

SLT

2008-2009

Hummer

H2

Base

2008-2009

Pontiac

G8

GT

2009

Pontiac

G8

GXP

## Details

- **Price:** 1852.04 CAD
- **Vendor:** FAST
- **Type:** Intake Manifolds

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 1852.04 CAD | In stock |

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/fast-lsx-manifold-103mm-gen-iii-ls-rect-port-black)
> Updated: 2026-06-28