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Air and Fuel› Superchargers, Turbochargers and Components

Hellion

Twin Turbo System

$8,495.00 $7,444.75 Save $1,050.25

SKU: HT-9901COB-TT

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Special Order
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$100 Minimum Order
30 Days Return
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Overview

The Hellion Hellraiser Twin Turbo System is a versatile forced-induction solution designed for the 1999-2001 Ford Mustang Cobra 4.6L DOHC. This system can function as a traditional twin turbo setup or as a compound-boost system when paired with a Roots-style supercharger. It features twin Precision 61mm cast-wheel journal bearing turbochargers and American-made stainless steel piping.
Show original supplier description
The Hellion "Hellraiser" Twin Turbo system for the 1999-2001 Mustang Cobra represents a revolutionary step in aftermarket power enhancement. This compound boost capability is the first of its kind in the Mustang aftermarket, allowing for greater boost, improved average power, and enhanced low-end torque compared to other systems. This system is designed to be capable of supporting up to 1200 HP and is proudly manufactured in the U.S.A. It is offered with various turbo upgrade options, including Precision 61mm, 62mm, 64mm, and 67mm billet wheel options with either journal or ball bearing configurations. Additional options for enhanced control and monitoring include the Turbosmart eBoost3 Electronic Boost Controller and an AEM X-Series Wideband Air/Fuel Sensor Gauge Kit. Installation of this kit is designed around the UPR tubular K-member. The manufacturer notes that using any other K-member may complicate installation and alter the intended design of the Hellion Turbo System. It is important to note that this system does not include programming; therefore, tuning will be required post-installation to optimize performance and ensure proper operation. The product is sold for competition vehicles only and is not legal for sale or installation in California.

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

BrandHellion
Part NumberHT-9901COB-TT
CategoryAir and Fuel
5,000+ Trusted brands
1M+ Enthusiasts
5M+ Parts sold
(760) 282-4645 hello@motormia.co

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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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