SKU: 16481624525
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
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Exchange/Return Notes
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  • Final sale items are not eligible for returns or exchanges.
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SKU: 16481624525

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Juanita
Birmingham, US
★★★★★ 4
Comfortable and Supportive, but Adjust the Filling
Color: White-cooling Basic, Size: Queen(Pack of 2), Color: White-cooling Basic, Size: Queen(Pack of 2)
I’m very happy with this pillow. The size is big and it feels soft while still providing good support, perfect for midnight scrolling on TikTok. One thing to keep in mind is that it can feel a little too tall if you use all of the filling that comes with it. The good news is that you can easily adjust the amount of filling to find the height that works best for your sleeping position. Once I customized it, it was much more comfortable. Overall, great quality, comfortable, and worth the purchase.
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Reviewed in the United States on June 3, 2026
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Love Leigh Angel
Whiting, US
★★★★★ 5
BEST PILLOWS EVER!!!
Color: White-cooling Basic, Size: Queen(Pack of 2)
I am very picky with my pillows because I have a bad neck and I can never seem to find a good pillow. But I tried this pillow because it had everything I was looking for and the price was great! You get two of them and they are absolutely awesome.! normally I would need to lay on two pillows to try and get comfortable but with these pillows I just lay on one and I wake up with no neck pain. They really have a nice cooling effect. They actually puff up immediately after opening them. All you have to do is just shake them up and the pillow just puffs straight up.. It comes with extra cushioning if you want it to make it firmer and if you don’t want it as firm as it is, you can actually take some out. It really is such a beautiful pillow. It’s perfect in every way to me being such a picky pillow person. You just lay your head down on it and it forms around your neck and your head and when you get up, it goes right back to its normal form. It doesn’t get flat and I love it. I completely recommend this to anyone who is a person who has a hard time finding a really good pillow.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 12, 2026
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$@[)E
Birmingham, US
★★★★★ 5
Top of the line, best pillows Ive ever had
Color: White-cooling Basic, Size: Queen(Pack of 2)
These pillows are top of the line! I bought them in 2024 and they are still fluffy. When they lose a little fluff, you just punch em around a little bit and voila, like new again. They have kept their shape cery well and do great for cooling. I haven't had to add more filling yet either. I just laid my head on one and thought, I need to do a review cause everytime i lay on these pillows its like clouds. My head is heavy and this is relief :-D
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Reviewed in the United States on May 21, 2026
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Chelsea H.
Battle Creek, US
★★★★★ 3
Weird smell
Color: White-cooling Basic, Size: Queen(Pack of 2)
The pillows are great for someone looking for something cool and comfortable. We loved them so much that we bought a second pair. However, we were seriously disappointed with the odor of our last purchase. They give off a strong and indescribable chemical/burning plastic smell so nauseating that it’s difficult to sleep with. We’re hoping this issue will resolve with a couple more washes of the pillow cases, but am worried the source is the stuffing itself.
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Reviewed in the United States on May 28, 2026
K
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Ken Hill
Port Orchard, US
★★★★★ 5
helped treat my sore neck
Color: White-cooling Basic, Size: Camping Pillow(Pack of 1)
This pillow — after dialing in the right amount of shredded foam — has greatly helped my sore neck. Initially, I had to remove some foam. Then I gradually added foam until it reached optimum comfort and support. It is also CPAP-friendly — especially when I position my head near the pillow's edge. (I am a left-side sleeper.) I like the travel size because I use a bulky hugging pillow to ease stress on my shoulder and elbow. That makes my side of the bed feel cramped if using a larger head pillow. A smaller pillow is easy to flip end-to-end in the middle of the night. I have spent lots of money on pillows over the years, but this is the best I've ever had for relieving [1] neck pain and [2] CPAP mask seal problems. Very comfortable, supportive, and affordable. I did not notice any unpleasant smell — and I am usually sensitive to that kind of thing. Would highly recommend.
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Reviewed in the United States on May 7, 2026

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