Air and Fuel› Fuel Injection Systems and Components - Electronic

FiTech

Ultimate LS 1000 HP EFI System

$2,245.00

SKU: 70034

In Stock
In Stock
Ships by Sep 13
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

The FiTech 70034 Ultimate LS is a 1000 HP EFI system designed for LS engines. It is a complete self-tuning induction system suitable for both DIY hot rodders and professional tuners. This kit provides everything needed to upgrade your LS engine's induction system, whether it's a junkyard 5.3L or a stroker 427.
Show original supplier description
The FiTech 70034 Ultimate LS 1000 HP EFI System is a comprehensive, self-tuning induction solution engineered for LS engines. Designed for a wide range of applications, from salvaged 5.3L engines to high-performance 427 strokers, this system simplifies the process of upgrading from factory hardware or topping off a new long block. It features a multi-port injection style, speed density metering, and is compatible with power adders like boost and nitrous oxide. The kit includes a self-learning ECU, a complete aluminum intake manifold with a black anodized finish, and a 102mm throttle body. Key components like injectors (80 lbs/hr), a wiring harness, oxygen sensor, MAP sensor, IAT sensor, and TPS sensor are also included, making installation straightforward. This system supports various fuel types including alcohol, gasoline, methanol, and flex fuel.

Product descriptions are provided by our supplier partners and may not always be perfectly accurate. Not sure this fits? or call (760) 282-4645 and we’ll verify before you order.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandFiTech
Part Number70034
CategoryAir and Fuel

We’re here — turning wrenches, just like you.

Call us, follow along, or come say hi.

(760) 282-4645 Instagram Google

Buy with Confidence

Returns & Fitment

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy

Shipping

Orders are processed in 1–3 business days. In stock parts ship promptly from our partner network. Special-order items either aren’t currently stocked or are built to your spec — expect 4–6 weeks. If a part goes on backorder while your order is in the queue, we’ll reach out and work through discounted alternatives together.

Free shipping over $200 in the continental US. Alaska, Hawaii, U.S. territories (Puerto Rico, U.S. Virgin Islands, Guam, American Samoa, and the Northern Mariana Islands), and international orders carry surcharges — most appear at checkout. Some exceptions (LTL freight, or suppliers who quote freight only after we place the order) won’t. In those cases we’ll reach out with the exact charge before your order moves forward.

View Full Shipping Policy