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The Granatelli Motor Sports 4in-3in Silicone Reducer Sleeve w/Clamps is designed for custom or universal systems that match its exact dimensions and interface. Match manufacturer part number 400B300X, the complete vehicle or system configuration, dimensions, connections, and included components before ordering.
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| Universal | Specification matched | Custom application | Confirm every dimension, port, material, electrical requirement, and interface |
Specifications
| Brand | Granatelli Motor Sports |
|---|---|
| Manufacturer Part Number | 400B300X |
| Product Type | Silicone Couplers & Hoses |
| Fitment Type | Universal |
| Condition | New |
| Diameter | 4in |
What's Included
One new Granatelli Motor Sports silicone couplers & hoses identified by manufacturer part number 400B300X, in the quantity stated by the title. Additional wiring, hoses, clamps, fittings, gaskets, fluids, tuning, tools, and installation hardware are included only when expressly listed for this exact part number.
About Granatelli Motor Sports
Granatelli Motor Sports develops ignition, airflow, exhaust, cooling, engine, brake, and fabrication components for domestic and import performance applications.
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Frequently Asked Questions
Will this airflow component work with the factory electronics?
Confirm the exact year, make, model, engine, connector, sensor style, mounting pattern, and current Granatelli application. Diameter alone is not enough.
Will tuning be required?
Calibration needs vary by vehicle and modification level. Confirm ECU support, sensor scaling, throttle mapping, idle control, and airflow requirements before installation.
Will the existing coupler or intake tube fit?
Measure every inlet, outlet, coupler, flange, and mounting point. An adapter, reducer, or revised intake tube may be required for some configurations.
Installation Instructions
Follow the current Granatelli Motor Sports and vehicle service instructions for part number 400B300X. Compare every component, connection, dimension, and mounting point before disassembly. Use the correct tools, fasteners, torque values, fluids, wiring protection, and safety procedures, then inspect for leaks, interference, heat exposure, and secure operation before normal use.
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