Sale

Air and Fuel› Intake Manifolds and Components

AMS Performance

Intake Manifold

$1,499.95 $1,399.95 Save $100.00

SKU: AMS.31.08.0001-1

In Stock
In Stock
Ships by Sep 12
Free Shipping over $200
$100 Minimum Order
30 Days Return
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Overview

It features equal-length intake runners and an increased port size at the cylinder heads, allowing for better matching with larger or ported cylinder heads. This manifold replaces the TGV housing with a long runner design and is expertly built from super strong yet lightweight materials.
Show original supplier description
It boasts 13-inch equal-length intake runners and a Bellhorn OD of 3.8 inches, providing optimized airflow. The throttle body opening accepts larger throttle bodies up to 2.625 inches, or 70mm with mild porting, and the increased port size at the cylinder heads allows for matching to larger hand-ported or CNC-ported cylinder heads. This design replaces the TGV housing with a long runner configuration. Constructed from super strong yet lightweight materials, this intake manifold is built for durability and performance. It is available in Uncoated or Texture Red Powder Coating finishes and can be installed in Standard or Reverse rotation. Applications include the 2002-2005 Subaru WRX w/ EJ20 (requires adapter for WRX style drive-by-cable throttle body), 2006-2014 Subaru WRX, and 2004-2021 Subaru WRX STI. It may also fit various Legacy and Forester EJ25 applications with proper throttle body usage and custom fitting. One user reported gaining 25 whp after installation and a retune, noting the manifold made the engine bay cleaner. Another user mentioned a perfect fit, great welds, clearance for a larger intake boot, and extra vacuum ports for a boost gauge.

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

BrandAMS Performance
Part NumberAMS.31.08.0001-1
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