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SKU: 2836 | UPC: 690092190668
Vibrant 4 Ply Reinforced Silicone Transition Connector - 3.5in I.D. x 4.5in I.D. x 3in long (BLACK)
Upgrade your turbocharger piping intercooler connections or high boost air intake with this Vibrant Performance transition coupler connecting 3.5-inch to 4.5-inch pipes. Hand-wrapped 4-ply aramid reinforced silicone handles extreme pressures without swelling or bursting in custom setups across drag racing street performance and motorsports builds. Rated from -65°F to 350°F it meets SAE J20 standards for reliable boost retention.
Key Features
- 4-Ply Aramid Reinforcement: Withstands heavy duty boost pressures up to 100 psi and prevents collapse under vacuum for consistent airflow
- Wide Temperature Range: Operates from -65°F to 350°F resisting heat soak cold starts and track abuse
- SAE J20 Compliant: Exceeds industry standards for coolant compatible hoses ensuring vibration resistance and longevity
- UV and Ozone Resistant: Maintains flexibility and shape in outdoor engine bays exposed to weather and chemicals
- Precise Transition Design: Smooth 3-inch length taper from 3.5in ID to 4.5in ID eliminates turbulence in intercooler piping and intake tracts
Product Notes
- Suitable for air boost coolant and vacuum applications in performance engines
- Not designed for oil or fuel contact custom Vibrant hoses available for those needs
- Store flat to preserve shape arrives rolled in protective sleeve
Installation Notes
- Professional installation recommended.
- Use stainless steel T-bolt clamps sized 3.25-3.75in for small end and 4.25-4.75in for large end
- Slide over clean barbed aluminum pipes heat with hair dryer if needed for tight fit
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| Universal | All | All | Turbo Intercooler Air Intake Piping Custom Builds |
Why Choose Vibrant Performance?
- Proven in NHRA drag racing and SEMA builds for intake hose reliability
- Hand-wrapped in USA with premium silicone for consistent wall thickness
- Engineered reinforcements match real world boost and heat demands
Frequently Asked Questions
-
Q: Will this coupler work on my turbo setup?
A: Yes it fits any custom piping needing a 3.5in to 4.5in step up common in large frame turbos intercoolers and velocity stacks -
Q: What reinforcement does it have?
A: Four layers of aramid fiber embedded in high temp silicone for burst resistance over 100 psi and full vacuum hold -
Q: Are clamps included?
A: No clamps sold separately secure with heavy duty stainless clamps for 50+ psi applications
Shipping & Handling
- Method: UPS Ground USPS Priority
- Availability: In stock - ships same or next business day
- Packaging: Protective poly sleeve box dimensions 7.75 x 7.5 x 3.5 inches
- Weight: 0.55 lbs
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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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