Product images and videos 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.

Exhaust› Headers, Manifolds and Components

PPE Engineering

Unequal Length Stainless Steel Headers

Name: Unequal Length Stainless Steel Headers
Brand: PPE Engineering
SKU: PPE-145003-SS

$2,328.00

SKU: PPE-145003-SS

Free Shipping over $200

$100 Minimum Order

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Overview

The PPE Engineering unequal length headers are a high-performance exhaust upgrade engineered for the Lexus RC F, GS F, IS F, and IS 500. Constructed from 304 stainless steel, these headers feature mandrel-bent 16-gauge tubing and 15-degree parallel merge collectors to optimize exhaust flow and engine scavenging.

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The PPE Engineering unequal length headers are designed to elevate engine performance by improving exhaust gas flow and scavenging efficiency on compatible Lexus models, including the IS F, RC F, GS F, and IS 500. The inclusion of 3/8-inch thick head and outlet flanges, along with flat-sanded surfaces, ensures a durable, leak-resistant seal against the engine block. Installation of this performance component utilizes factory-style mounting points. The kit includes essential hardware such as O2 sensor extensions and outlet gaskets to facilitate the upgrade; however, installers must reuse the original equipment manufacturer (OEM) metal header-to-engine gaskets if so equipped, as they are not included in the package. Please note that this product is manufactured exclusively for off-road competition use and may not be registered or licensed for use on public roads. These headers are compatible only with left-hand drive models.

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

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Specifications

Brand	PPE Engineering
Part Number	PPE-145003-SS
Category	Exhaust

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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.

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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.

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