Killer B Motorsports Holy Header Max VE Up Pipe 04-21 STI / 02-14 WRX / 04-13 Forester XT / 05-09 Legacy GT / 05-09 Outback XT | 321 Stainless Steel | Performance Up Pipe
Overview
The Killer B Motorsports Holy Header Max VE Up Pipe is a high-performance exhaust component designed specifically for a broad range of Subaru models including the 2004-2021 WRX STI, 2002-2014 WRX, 2004-2013 Forester XT, 2005-2009 Legacy GT, and 2005-2009 Outback XT. This up pipe replaces the restrictive factory unit to improve exhaust flow, reduce turbo lag, and support higher boost levels, making it an essential upgrade for enthusiasts pursuing increased power and efficiency.
Crafted from premium USA-sourced 321 stainless steel, this up pipe features 14-gauge, 2-inch mandrel-bent tubing that ensures smooth exhaust gas flow and exceptional durability under extreme heat conditions typical of turbocharged Subaru engines. The CNC mandrel bending process guarantees precise and consistent fitment, eliminating the need for a flex joint section which is often a source of leaks and failures. Additionally, CNC-machined stainless steel flanges provide true mating surfaces to the exhaust manifold and turbo exhaust housing, ensuring a reliable, leak-free seal.
For Subaru owners, this up pipe offers tangible benefits such as improved turbo spool response and increased power potential when paired with appropriate tuning. Its robust construction and exact fitment mean it can withstand the rigors of daily driving and spirited track use alike. This component is a foundational upgrade for those looking to maximize the performance of their turbocharged Subaru while maintaining long-term reliability.
Features & Specifications
This Killer B Motorsports Holy Header Max VE Up Pipe is engineered for Subaru WRX, STI, Forester XT, Legacy GT, and Outback XT models. It features 2-inch diameter, 14-gauge 321 stainless steel tubing with CNC mandrel bends and stainless steel flanges, delivering enhanced exhaust flow and durability for Subaru enthusiasts seeking reliable performance gains.
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Brand: Killer B Motorsports
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Product: Holy Header Max VE Up Pipe
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Part Number: U102-3
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Fitment: 04-21 STI / 02-14 WRX / 04-13 Forester XT / 05-09 Legacy GT / 05-09 Outback XT
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Material: 321 Stainless Steel
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Finish: Natural stainless steel
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Construction: CNC mandrel bent tubing with CNC stainless steel flanges
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Origin: USA sourced materials
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Tubing Diameter: 2 inches
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Tubing Gauge: 14-gauge
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Compatibility: OEM 2-bolt exhaust manifold flange
Key Benefits
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Performance: Improves exhaust flow and turbo spool for increased power potential
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Durability: 321 stainless steel construction resists corrosion and withstands high temperatures
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Fitment: CNC mandrel bending and flanges ensure precise, leak-free installation
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Reliability: Eliminates flex joint failures common in factory up pipes
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Compatibility: Designed to fit multiple Subaru turbocharged platforms with OEM flange compatibility
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Value: A foundational upgrade supporting future performance modifications and tuning
What's Included
- 1× Killer B Motorsports Holy Header Max VE Up Pipe
Installation & Compatibility
Installation of the Killer B Motorsports Holy Header Max VE Up Pipe is moderately challenging and generally recommended for those with mechanical experience or professional installation. The up pipe bolts directly to the OEM 2-bolt exhaust manifold flange, requiring no modifications to the exhaust manifold or turbo housing. No special tools beyond standard hand tools are typically necessary. Because this is a performance exhaust component, tuning adjustments are recommended to optimize power gains and ensure safe air/fuel ratios. Verify fitment carefully for your specific Subaru model and year before purchase.
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Professional Installation: Recommended
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Modifications Required: None
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Verify Compatibility: Confirm fitment for your specific year and trim level
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