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SKU: 19741 | UPC: 690092178666
Vibrant 4 Ply Reducer Coupler 4.0in ID x 3.50in ID x 4.50in Long - Black
This Vibrant Performance silicone reducer coupler creates smooth step-down transitions in custom air intake turbocharger piping and intercooler setups. It fits universal applications across cars trucks and high-performance vehicles requiring reliable hose connections under boost. Reinforced construction ensures airtight seals and consistent airflow in demanding conditions.
Key Features
- 4-Ply Reinforcement: Polyester fabric layers handle 100 PSI working pressure without deformation for safe high-boost operation
- Temperature Resistance: Functions reliably from -65°F to 500°F resisting heat soak and cold starts
- Exact Dimensions: Tapers precisely from 4.00in ID to 3.50in ID over 4.50in length promoting laminar flow and minimal turbulence
- Premium Silicone: Flexible material resists ozone UV rays and weathering for extended service life
- Black Exterior: Clean professional appearance matches factory and aftermarket piping systems
Product Notes
- Use with T-bolt or heavy-duty clamps rated for application pressure sold separately
- Inspect periodically for abrasion or kinking especially in tight routing
- Store in cool dry place away from direct sunlight prior to installation
Installation Notes
- Professional installation recommended.
- Lubricate inner surface lightly with silicone spray for easier fitting over barbs
- Compatible with 4in and 3.5in OD aluminum stainless or powdercoated piping
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | Custom Intake Turbo Piping | All |
Why Choose Vibrant Performance?
- Trusted by racing teams and builders around the world for consistent results
- Manufactured with strict quality controls for zero defects
- Full range of oil and air system components simplifies builds
Frequently Asked Questions
-
Q: Will this fit my custom turbo setup?
A: Yes this universal reducer works with any 4in to 3.5in piping in intake intercooler or boost hose applications on cars trucks or imports -
Q: What material and wall thickness?
A: High-grade 4-ply reinforced silicone with 0.197in wall thickness for strength and flexibility -
Q: What is the warranty coverage?
A: Backed by Vibrant Performance limited warranty contact support for claim details
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective poly bag in 6in x 6in x 2in box
- Weight: 0.44 lbs
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View Vibrant ProductsLet customers speak for us
Looks pretty nice
Looks pretty nice, pricing was good and the reinforcement is a big plus.
Randy H.
Black Ops Auto Works
I emailed customer service to inquire about when it would be shipped
I emailed customer service to inquire about when it would be shipped. They checked and emailed me with the answer. Customer service is A1
Ralph J.
Black Ops Auto Works
Installation was easy
Installation was easy. The price is good and it looks great on the truck.
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