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SKU: MMCP-4SBK | UPC: 811580038259
Mishimoto 4 Inch Straight Coupler - Black (Universal Fit)
The Mishimoto 4 Inch Straight Coupler in black silicone connects 4-inch pipes in air intake turbo intercooler and charge pipe systems on performance vehicles. This universal part fits custom setups on Subaru STI Mitsubishi Evo and similar boosted cars delivering airtight seals under high pressure. Its reinforced design ensures long-lasting performance in demanding conditions.
Key Features
- 4-Ply Aramid Reinforcement: Provides strength to handle over 100 PSI burst pressure at 212°F for reliable high-boost operation
- High Temperature Resistance: Operates from -49°F to 356°F preventing degradation in extreme engine bay heat
- Precise Dimensions: 4.00 inch inner diameter 4.39 inch outer diameter and 3.94 inch length for exact fit on standard 4 inch pipes
- Premium Silicone Construction: Flexible yet durable material resists cracking and maintains shape over time
- Black Finish: Matches factory and aftermarket piping for clean underhood appearance
Product Notes
- Clamps and barbed adapters sold separately for complete installation
- Inspect coupler periodically for signs of wear in high-heat applications
- Packaged securely to prevent damage during transit
Installation Notes
- Professional installation recommended.
- Clean pipe ends thoroughly before sliding coupler into place
- Use T-bolt stainless steel clamps rated for 4 inch diameter for secure seal
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2004-2007 | Subaru | Impreza | WRX STI |
| 2008-2014 | Subaru | Impreza | WRX STI |
| 2008-2015 | Mitsubishi | Lancer Evolution | X |
| 2015-2021 | Subaru | WRX | STI |
| Universal | Various | 4 Inch Piping | Custom Intakes |
Why Choose Mishimoto?
- Proven track record in performance cooling and intake components
- Engineered and dyno-tested in the USA for real-world durability
- Lifetime warranty protects against manufacturing defects
Frequently Asked Questions
-
Q: Will this coupler fit my 4 inch intake pipes?
A: Yes it stretches to fit 4.00 inch inner diameter pipes securely with proper clamps for turbo and supercharger setups -
Q: What material is used in construction?
A: High-grade 4-ply aramid reinforced silicone built to endure boost pressures and engine temperatures -
Q: Is installation straightforward and what warranty applies?
A: Simple slide-on install with clamps recommended backed by Mishimoto lifetime warranty for peace of mind
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Compact box 6 x 6 x 2 inches
- Weight: 0.4 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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