SKU: 30346029072
boost box performance

boost box performance Perrin Boost Tube Box Red for 2015-2021 WRX

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Description

boost box performance Perrin Boost Tube Box Red for 2015-2021 WRXPerrin Performance Boost Tube Box w Red Boost Tubes and Black Couplers 2015 2021 WRX 2. 25" Aluminum Tubing Boost Tube Kit Overview The Perrin Performance Boost Tube Box is a precision engineered upgrade designed specifically for the 2015 2021 Subaru WRX equipped with a Perrin front mount intercooler core. This kit replaces the restrictive OEM boost tubes with CNC mandrel bent aluminum tubing, featuring a smooth 2. 25" diameter for optimal airflow.

Perrin Performance Boost Tube Box w/ Red Boost Tubes and Black Couplers 2015-2021 WRX | 2.25" Aluminum Tubing | Boost Tube Kit

Overview

The Perrin Performance Boost Tube Box is a precision-engineered upgrade designed specifically for the 2015-2021 Subaru WRX equipped with a Perrin front mount intercooler core. This kit replaces the restrictive OEM boost tubes with CNC mandrel bent aluminum tubing, featuring a smooth 2.25" diameter for optimal airflow. The design focuses on reducing weight and improving boost response by providing a cleaner, obstruction-free path for the charged air traveling between the turbo and intercooler. It’s ideal for Subaru enthusiasts looking to maximize their turbo system’s efficiency and power potential while maintaining reliable fitment and durability.

Perrin’s engineering approach prioritizes smooth airflow and practical routing within the engine bay. The boost tubes are carefully routed to take the shortest, most direct path from the turbo to the intercooler, minimizing pressure drop and turbulence. Oversized beaded ends on each tube ensure secure clamping and airtight seals with the included black couplers. Additionally, the kit integrates seamlessly with Perrin’s custom washer fluid and coolant overflow tanks, which are designed to clear space for the boost tubes while maintaining OEM-level quality and appearance with durable black powder-coated finishes.

For Subaru WRX owners, this boost tube kit delivers tangible improvements in throttle response and turbo spool characteristics by reducing restrictions in the intake charge path. The 2.25" tubing diameter is carefully chosen to support power levels beyond most stock turbo capabilities without unnecessary size increases that could hurt spool time. This upgrade complements other Perrin intercooler components and is a practical step for anyone pursuing reliable, efficient forced induction performance on their WRX.

Features & Specifications

This Perrin Performance Boost Tube Box is engineered for 2015-2021 Subaru WRX models with Perrin front mount intercoolers and features 2.25" CNC mandrel bent aluminum tubing. Constructed from lightweight aluminum, it delivers improved airflow and boost response for Subaru enthusiasts seeking enhanced turbo efficiency and reliable fitment.

  • Brand: Perrin Performance
  • Product: Boost Tube Box w/ Red Boost Tubes and Black Couplers
  • Part Number: PSP-ITR-437-2RD/BK
  • Fitment: 2015-2021 Subaru WRX (with Perrin front mount intercooler core)
  • Material: Aluminum
  • Finish: Red powder coat (boost tubes), Black powder coat (couplers and tanks)
  • Construction: CNC mandrel bent tubing with oversized beaded ends
  • Origin: USA (Perrin Performance)

Key Benefits

  • Performance: Larger 2.25" tubing reduces airflow restrictions for improved boost response and potential power gains.
  • Fitment: Designed specifically for 2015-2021 WRX with Perrin front mount intercooler, ensuring seamless integration and clearance.
  • Durability: CNC mandrel bent aluminum tubing with powder-coated finish resists corrosion and heat exposure in the engine bay.
  • Reliability: Oversized beaded tube ends and quality couplers provide secure, leak-free connections under boost pressure.
  • Weight Savings: Aluminum construction reduces weight compared to OEM plastic tubes, contributing to overall vehicle efficiency.
  • OEM+ Quality: Includes matching powder-coated washer fluid and coolant overflow tanks for a clean, factory-inspired engine bay appearance.

What's Included

  • 1× Perrin Performance Boost Tube Box with Red Boost Tubes
  • Black silicone couplers for all connections
  • Perrin Washer Fluid Tank (black powder-coated)
  • Perrin Coolant Overflow Tank (black textured powder-coated)
  • Installation instructions

Installation & Compatibility

Installation of the Perrin Boost Tube Box is moderately straightforward for enthusiasts with basic mechanical skills and common hand tools. The kit is a direct replacement for the OEM boost tubes but requires removal of the factory tubes and installation of the included custom washer fluid and coolant overflow tanks to ensure proper clearance. No major modifications are necessary, but careful attention to hose clamp tightness is essential to prevent boost leaks. This kit is only compatible with Perrin front mount intercooler cores and will not fit other intercooler setups.

  • Professional Installation: Recommended for best results, but DIY-friendly for experienced enthusiasts
  • Modifications Required: None beyond included tank replacements
  • Verify Compatibility: Confirm your vehicle is a 2015-2021 Subaru WRX with Perrin front mount intercooler core before purchasing

Shop with confidence at Subimods—your Subaru parts specialists.

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 30346029072

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Turkey
Grantham, US
★★★★★ 4
very ergonomic
Color: Deep Black, Color: Deep Black
I bought this as a replacement for one of those gaming chairs that kills your back with a little lumbar pillow and this one is muuuuch better. the back support is everything you’d need and got rid of my neck pain after long periods of sitting and the seat cushion is supportive but still comfortable. It’s the kind of chair that you don’t really think about much because it’s so natural to sit in that you forget it’s there. The armrests flipping is a really nice feature too. One star off only because the head rest is so far back that i can’t really rest my head on it and every part of the chair that’s cloth is made of the same mesh texture like the armrests and seat. but i have no other complaints this is a good chair
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Reviewed in the United States on March 14, 2026
E
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Elva
Houston, US
★★★★★ 5
Comfortable Ergonomic Chair for Long Workdays
Color: Black, Color: Black
I’ve been using this chair for my home office, and it’s been a great addition to my workspace. The seat cushion is thick and comfortable, even after several hours of sitting, and the mesh back keeps good airflow throughout the day. I especially like the adjustable headrest, which provides extra neck support when leaning back during breaks. Assembly was straightforward, the chair feels sturdy, and the wheels roll smoothly on my floor. The all-black design also gives it a professional look that fits well in any office setup. Overall, it’s a comfortable and affordable ergonomic chair that offers excellent value for the price.
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Reviewed in the United States on May 28, 2026
E
Verified Purchase
Emily Hopman
Louisville, US
★★★★★ 3
Sturdy but uncomfortable
Color: Black
The seat itself is sturdy and easy to put together, I’ve now had the product for 8 months and had no issues wear/tear despite nearly daily use, but… it’s not comfy, at all. The seat cushion has a texture to it that scrapes at my legs if I don’t have an extra pillow on it or am wearing shorts. Additionally, the seat pillow is just kind of hard. It doesn’t give very much at all, so if I sit on it for more than an hour or two at a time my butt starts to get really sore. It works as a budget option, but invest in a good seat pillow if you plan to sit in it for any length of time.
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Reviewed in the United States on April 29, 2026
J
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Jade20
Belleville, US
★★★★★ 5
A chair that does the job
Color: Black, Color: Black
I’m really happy with this chair overall. I wanted something comfortable, sturdy, breathable, and spacious enough for long hours at my desk when I work from home, and this chair delivered. I’d easily give this chair five stars because it exceeded my expectations in comfort, quality, and overall value. Comfort and Support The mesh back keeps it cool and comfortable during extended use. One of my favorite features is the adjustable lumbar support. You can manually position it exactly where your lower back needs support, and it fits the curve of my back perfectly. It provides great support without feeling too firm or uncomfortable. Build Quality and Design The chair itself feels solid and well-built. It doesn’t creak or make noise when shifting around, which makes it feel stable and high-quality. The seat is roomy and comfortable, and the overall design looks clean and modern. Easy Assembly It also came with an instruction manual that was extremely simple to follow, and assembly was very easy. I was able to put the chair together by myself in about 20 minutes without any help. Armrest Functionality I also like the armrests. They aren’t adjustable by height, but they do flip all the way up, which is surprisingly convenient. You can easily slide the chair under a desk or use it as an armless chair when needed. Packaging and Presentation Another thing worth mentioning is the packaging. Everything arrived extremely well-packed. Every individual part of the chair was wrapped securely, including bubble wrap protection for the components. The hardware and accessories were neatly organized, and the chair even came with the necessary tools for assembly in case you don’t own a drill or tool set. The presentation and packaging were excellent and showed real attention to detail. Overall Impression Overall, this is a fantastic office chair for the price: comfortable, supportive, sturdy, easy to assemble, and packaged exceptionally well. I’d absolutely recommend it and would confidently give it a five-star rating.
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Reviewed in the United States on May 23, 2026
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Verified Purchase
Melissa Alvarado
Lowell, US
★★★★★ 5
Solid quality and comfortable
Color: Light Grey, Color: Light Grey
Wonderful quality chair, solid and sturdy, it was easy to put together, the directions were very clear and all the pieces fit together perfectly without issue. It is made of breathable material and I love that the arms flip up easily. You can raise it up or down and it has an adjustable headrest. It also has adjustable lumber support. It rolls easily and the color is the only reason I might return, I think I want a different one instead. The chair is comfortable for a petite person but equally comfortable for a tall person. We have both in our family and it is great for both. The armrests are comfortable and there is really nothing negative to say about this chair at all. Considering the quality, it is a great value for the money.
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Reviewed in the United States on April 15, 2026

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