Description

Map Sensor – 2.5 bar – Up to 25 psi Boost – Sniper EFI Intake – GM LS-Series – Each

Why Choose Us?



Frequently Asked Questions​

As an Authorized Automotive Retailer in the United States, we take pride in guaranteeing 100% authentic products from all brands available on our website. With partnerships spanning 1,000+ brands and a network of 20+ distributor warehouses nationwide, we maintain millions of auto parts in inventory across the USA, ensuring quick shipping and reliable service to our customers. When you shop with us, you're investing in quality and trust.
We believe we have the fastest backorder system in the U.S. auto parts industry, thanks to our strong partnerships with brands and vendors. Nearly all backordered auto parts are shipped directly by the vendors without any additional delays, or they are placed as special orders on the same day. In most cases, backordered parts are delivered within 5-10 days.
We offer unbeatable prices and the best shipping rates on auto parts, with exclusive protection and insurance included to safeguard your order from damage or loss. Enjoy convenient door-to-door delivery, real-time tracking, and our 100% satisfaction guarantee for a smooth, worry-free experience.
Our standard shipping typically takes 1-3 business days. We will provide estimated shipping time for each product. While we aim to deliver as quickly as possible, this timeframe ensures all orders are processed, prepared, and dispatched with care. If the products are not ready for shipping in 72 hours, we will refund you 100%
Absolutely. Once your order is dispatched, you’ll receive an email with tracking details, so you can follow your shipment every step of the way. Every step of shipping process will be sent through email notifications or using tracking page.
Every product page includes a stock level indicator to show what’s available. We always update the inventory 24/24. We’ll be happy to check availability and provide updates on new stock arrivals if you need a help.
We’re sorry to hear that your order wasn’t delivered in perfect condition. Please email us with your order number, a description of the issue, and photographs of the damaged item. Once we receive this information, we’ll arrange for a replacement or refund and handle the return process.
You can return items within 30 days of receipt. Ensure the product is new in its original packaging and securely wrapped for safe transit. Once we receive the item in sellable condition, we’ll issue a full refund for the product value. Contact us for the return address and further instructions.

About HOLLEY

A leader in fuel systems for over 100 years, Holley fuel management systems have powered top circle track and drag racing teams around the world. Now, Holley offers EFI systems for GM's LS engine, among many other applications. Holley's products also include performance fuel pumps, intake manifolds, and engine accessories products for street performance, race, and marine applications.

International Shipping

Below are estimated rates and delivery times for popular destinations; full carrier options are available at checkout.

Our dedicated team has years of experience managing international logistics and customs documentation to ensure smooth delivery from our US warehouse to your door. Please review our shipping policy and local import regulations before ordering.

Loading international estimates...

Reviews

There are no reviews yet.

Be the first to review “HOLLEY MAP Sensor 2.5 Bar GM LS 870021”

Your email address will not be published. Required fields are marked *

Recently viewed products

  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    PERFORMANCE AUTOMATIC Street Smart Systems Volume 6.12 PAM100

    SKU: PAM100
    Product information
    Details...
    Original price was: $0.74.Current price is: $0.67.Add to cart
    Original price was: $0.74.Current price is: $0.67.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MARK WILLIAMS Gt 5-Bolt Quick Release 10025

    SKU: MWE10025
    Product information
    • Weight0.625 lbs
    • Dimensions4.9 × 4.1 × 2.5 in
    • Material

      Steel

    • Color

      Natural

    • Finish

      Natural

    • Quantity

      Kit

    • Release Style

      360 Degree

    Details...
    Original price was: $217.67.Current price is: $197.88.Add to cart
    Original price was: $217.67.Current price is: $197.88.
    Quantity Only 5 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION Wire Harness 6A & 6AL Ignition Boxes 8897

    SKU: MSD8897
    Product information
    • Weight0.73 lbs
    • Dimensions6.7 × 6.55 × 3.25 in
    • Quantity

      Each

    • Harness End 1

      MSD Digital 6A / 6A-L Ignition

    • Harness End 2

      Wire Ends

    • Harness Purpose

      Replacement Harness

    • Loom / Sleeve Included

      Yes

    Details...
    Original price was: $38.00.Current price is: $33.73.Add to cart
    Original price was: $38.00.Current price is: $33.73.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION Deutsch Connector Kit 8188

    SKU: MSD8188
    Product information
    • Weight2.1 lbs
    • Dimensions13.1 × 9.4 × 2.4 in
    • Quantity

      Kit

    • Pins Included

      Yes

    • Housing Style

      Deutsch

    • Housing 1 Quantity

      4.0

    • Housing 1 Pin Quantity

      2 Pin

    Details...
    Original price was: $275.00.Current price is: $249.95.Add to cart
    Original price was: $275.00.Current price is: $249.95.
    Quantity Only 5 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    MSD IGNITION Sb Chevy Plug Wires 31409

    SKU: MSD31409
    Product information
    • Weight2.25 lbs
    • Dimensions11 × 10 × 2.9 in
    • Product Line

      Super Conductor

    • Quantity

      Kit

    • Assembled

      Yes

    • Rfi Supression

      Yes

    • Conductor Style

      Spiral Core

    Details...
    Original price was: $216.00.Current price is: $195.95.Add to cart
    Original price was: $216.00.Current price is: $195.95.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    RACEQUIP Blue Jacket Multi Layer Medium 121023RQP

    SKU: RQP121023
    Product information
    • Weight3.2 lbs
    • Dimensions15.9 × 12.1 × 4 in
    • Product Line

      120 Series

    • Size

      Medium

    • Sfi Rating

      3.2A/5

    • Layers

      2 Layer

    • Stripe

      Yes

    Details...
    Original price was: $226.00.Current price is: $204.95.Add to cart
    Original price was: $226.00.Current price is: $204.95.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    WEATHERTECH Black No Drill MudFlaps 120108

    SKU: WEA120108
    Product information
    • Weight3.23 lbs
    • Dimensions22 × 14 × 5 in
    • Product Line

      DigitalFit

    • Application Specific

      Yes

    • Front / Rear

      Rear

    • Texture

      Textured

    • Material

      Plastic

    Details...
    Original price was: $104.00.Current price is: $93.95.Add to cart
    Original price was: $104.00.Current price is: $93.95.
    Quantity Only 2 left in stock!
    -+
    Add to cart
    Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOLLEY Main Jets (2) 122-60

    SKU: HLY122-60
    Product information
    • Weight0.02 lbs
    • Dimensions4.95 × 3.5 × 0.55 in
    • Fuel Type

      Gasoline

    • Inside Diameter

      0.0600 in

    • Jet Number

      60.0

    • Style

      Main

    • Thread

      1/4-32 in

    Details...
    Original price was: $17.00.Current price is: $14.69.Add to cart
    Original price was: $17.00.Current price is: $14.69.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    HOLLEY Main Jets (2) 122-55

    SKU: HLY122-55
    Product information
    • Weight0.02 lbs
    • Dimensions4.95 × 3.45 × 0.55 in
    • Fuel Type

      Gasoline

    • Inside Diameter

      0.0540 in

    • Jet Number

      55.0

    • Style

      Main

    • Thread

      1/4-32 in

    Details...
    Original price was: $17.00.Current price is: $14.69.Add to cart
    Original price was: $17.00.Current price is: $14.69.Add to wishlist
  • Add to wishlist
    Sale
    Wheel Front Aftermarket Shop
    Add to wishlist

    WINTERS Quick Change Gears 8503

    SKU: WIN8503
    Product information
    • Weight6.545 lbs
    • Dimensions8.85 × 5.05 × 2 in
    • Material

      Steel

    • Color

      Polished

    • Finish

      Polished

    • Quantity

      Pair

    • Variant

      Yes

    Details...
    Original price was: $128.16.Current price is: $116.51.Add to cart
    Original price was: $128.16.Current price is: $116.51.
    Quantity Only 5 left in stock!
    -+
    Add to cart
    Add to wishlist

    23