SKU: PSP-ITR-438-3BK
PERRIN 15-21 Subaru STI Front Mount Intercooler Boost Tube Kit – Black
The PERRIN Front Mount Intercooler Boost Tube Kit replaces weak factory plastic boost tubes on 2015-2021 Subaru WRX STI models equipped with front mount intercoolers. These black silicone tubes handle high boost pressures without leaking or bursting for consistent power delivery. Larger inner diameters increase airflow to support bigger turbos and tuning.
Key Features
- 4-Ply Silicone Construction: Reinforced with stainless steel braid to withstand 40+ PSI without failure unlike brittle OEM plastic
- Larger Diameter Tubes: 2.25 inch to 2.75 inch sizes deliver 20% more airflow than stock for quicker spool and higher power
- Pre-Beveled Ends: Match OEM angles for simple slide-on installation with no trimming required
- Laser Etched Markings: Identify tube sizes and orientation quickly during assembly
- Embossed Perrin Logo: Durable branding maintains appearance under hood heat and pressure
Product Notes
- Designed exclusively for STI models with aftermarket front mount intercoolers
- Clean tubes with isopropyl alcohol before installation for secure fit
- Ships in protective box measuring 14 x 10 x 6 inches
Installation Notes
- Professional installation recommended.
- Direct bolt-on replacement takes 1-2 hours with basic tools
- Includes stainless steel T-bolt clamps and silicone couplers for all connections
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2015-2021 | Subaru | WRX STI | All (FMIC Equipped) |
Why Choose PERRIN?
- 20+ years engineering Subaru-specific parts in the USA
- Proven in 1000+ HP builds with zero reported failures
- CNC mandrel-bent for precise fitment on stock or modified setups
Frequently Asked Questions
- Q: Will this kit fit STI models with stock side-mount intercoolers?
A: No, this kit is built for front mount intercooler setups only. Check PERRIN PSP-ITR-100 for stock intercooler applications. - Q: What material and reinforcement is used?
A: High-temp 4-ply silicone reinforced by stainless steel braid rated for extreme boost levels. - Q: What warranty coverage applies?
A: Limited lifetime warranty against manufacturing defects when installed correctly.
Shipping & Handling
- Method: UPS Ground or USPS Priority
- Availability: In stock – ships same or next business day
- Packaging: Secure foam-packed box 14 x 10 x 6 inches
- Weight: 2.8 lbs
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