---
product_id: 604476585
title: "Performance Design XS LS3 103mm Intake Manifold - Fits LS3 L92 L99 L76 L77 L96 LY6 Rectangle-Port Engines - Performance Modular Intake"
brand: "michigan motorsports"
price: "$3396.90"
currency: USD
in_stock: true
url: https://www.desertcart.ec/products/604476585-performance-design-xs-ls3-103mm-intake-manifold-fits-ls3-l92
store_origin: EC
region: Ecuador
---

# Boost-ready up to 20 psi for serious power 103mm intake diameter for max airflow Modular 3-length runners optimize torque & HP Performance Design XS LS3 103mm Intake Manifold - Fits LS3 L92 L99 L76 L77 L96 LY6 Rectangle-Port Engines - Performance Modular Intake

**Brand:** michigan motorsports
**Price:** $3396.90
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock peak LS3 power with precision airflow engineering!

## Quick Answers

- **What is this?** Performance Design XS LS3 103mm Intake Manifold - Fits LS3 L92 L99 L76 L77 L96 LY6 Rectangle-Port Engines - Performance Modular Intake by michigan motorsports
- **How much does it cost?** $3396.90 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ec](https://www.desertcart.ec/products/604476585-performance-design-xs-ls3-103mm-intake-manifold-fits-ls3-l92)

## Best For

- michigan motorsports enthusiasts

## Why This Product

- Trusted michigan motorsports brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Lightweight & Durable:** Injection-molded glass-reinforced nylon with carbon fiber cover for strength and weight savings
- • **Modular Runner Design:** Three staggered runner lengths deliver torque at low RPM and horsepower at high RPM
- • **Boost-Ready Performance:** Built to handle up to 20 psi boost—perfect for naturally aspirated or forced induction setups
- • **Wide Engine Compatibility:** Fits LS3-style rectangle-port engines including L92, L99, L76, L77, L96, LY6 and more
- • **Innovative Internal Fuel System:** Sleek internal fuel rails & injectors boost airflow without bulk

## Overview

The Performance Design XS LS3 103mm Intake Manifold by Michigan Motorsports features an innovative internal fuel system with housed fuel rails and injectors, modular staggered runners for optimized torque and horsepower, and a lightweight yet durable glass-reinforced nylon construction. Compatible with a wide range of LS3-style rectangle-port engines, it’s engineered to support up to 20 psi of boost, making it ideal for both naturally aspirated and forced induction builds.

## Description

Performance Design XS LS3 103mm Intake Manifold - Fits LS3 L92 L99 L76 L77 L96 LY6 Rectangle-Port Engines - Performance Modular Intake

## Features

- Innovative Internal Fuel System Design – Features internally housed fuel rails and injectors, allowing for longer intake runners and improved airflow without increasing manifold height.​
- Modular Runner Configuration – Utilizes three staggered runner lengths to optimize airflow across the RPM range, enhancing both low-end torque and high-RPM horsepower.​
- High-Strength Construction – Injection-molded glass-reinforced nylon body with a carbon fiber center bolt cover ensures durability while reducing weight.​
- Comprehensive Compatibility – Designed for LS3-style rectangle-port engines, including L92, L99, L76, L77, L96, LY6, and more.​
- Boost-Ready Design – Engineered to handle up to 20 psi of boost, making it suitable for both naturally aspirated and forced induction applications.​

## Technical Specifications

| Specification | Value |
|---------------|-------|
| Manufacturer | Michigan Motorsports |
| Brand | Michigan Motorsports |
| Model | Performance Design XS LS3 103mm Intake Manifold |
| Item model number | 70715.01 |
| Exterior | Injection molded glass reinforced nylon construction |
| Manufacturer Part Number | 70715.01 |

## Images

![Performance Design XS LS3 103mm Intake Manifold - Fits LS3 L92 L99 L76 L77 L96 LY6 Rectangle-Port Engines - Performance Modular Intake - Image 1](https://m.media-amazon.com/images/I/51IENEv3imL.jpg)
![Performance Design XS LS3 103mm Intake Manifold - Fits LS3 L92 L99 L76 L77 L96 LY6 Rectangle-Port Engines - Performance Modular Intake - Image 2](https://m.media-amazon.com/images/I/91sJgfTZVUL.jpg)
![Performance Design XS LS3 103mm Intake Manifold - Fits LS3 L92 L99 L76 L77 L96 LY6 Rectangle-Port Engines - Performance Modular Intake - Image 3](https://m.media-amazon.com/images/I/51SDmOSr6IL.jpg)
![Performance Design XS LS3 103mm Intake Manifold - Fits LS3 L92 L99 L76 L77 L96 LY6 Rectangle-Port Engines - Performance Modular Intake - Image 4](https://m.media-amazon.com/images/I/61eEymCCpXL.jpg)
![Performance Design XS LS3 103mm Intake Manifold - Fits LS3 L92 L99 L76 L77 L96 LY6 Rectangle-Port Engines - Performance Modular Intake - Image 5](https://m.media-amazon.com/images/I/71sIgQehD6L.jpg)

## Frequently Bought Together

- Performance Design XS LS3 103mm Intake Manifold - Fits LS3 L92 L99 L76 L77 L96 LY6 Rectangle-Port Engines - Performance Modular Intake
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**Shop now:** [https://www.desertcart.ec/products/604476585-performance-design-xs-ls3-103mm-intake-manifold-fits-ls3-l92](https://www.desertcart.ec/products/604476585-performance-design-xs-ls3-103mm-intake-manifold-fits-ls3-l92)

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*Product available on Desertcart Ecuador*
*Store origin: EC*
*Last updated: 2026-02-19*