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Silicone Couplers, Reducer Hoses & Clamps

Squirrelly 90-Degree Elbow Reducer Silicone Coupler | 2.0" to 4.0" Various Sizes

$19.99 $21.99
You Save 9% ($ 2.00)

Squirrelly Straight Silicone Coupler Hose | 2.0" to 4.0" Various Sizes

$5.99 $6.59
You Save 9% ($ 0.60)

Squirrelly 45 Degree Elbow Silicone Coupler | 2.0" to 4.0" Various Sizes

$16.99 $18.69
You Save 9% ($ 1.70)

Squirrelly Straight Reducer 3-Ply Silicone Coupler | 1.5" to 4.0" Various Sizes

$9.99 $10.99
You Save 9% ($ 1.00)

Squirrelly 45-Degree Elbow Reducer Silicone Coupler | 1.75" to 4.0" Various Sizes

$19.99 $21.99
You Save 9% ($ 2.00)

Squirrelly 90 Degree Elbow 3-Ply Silicone Coupler Hose | 2.0" to 4.0" Various Sizes

$16.99 $18.69
You Save 9% ($ 1.70)

PRL Motorsports Silicone Reducer (2.75" - 2.5") (SIL-250/275)

$5.93 $5.99
You Save 1% ($ 0.06)

Mishimoto 2.5" to 2.75" Silicone Transition Couplers (MMCP-25275)

$6.95 $11.44
You Save 39% ($ 4.49)

Squirrelly 2.75" Straight Silicone Coupler w/ T-Bolt Clamps (4030+4490-2)

$10.37 $12.97
You Save 20% ($ 2.60)

PRL Motorsports Silicone Reducer (3.5" - 2.75") (SIL-275/350)

$11.87 $11.99
You Save 1% ($ 0.12)

PRL Motorsports Silicone Straight Coupler - 2.75" (SIL-275)

$6.44 $6.50
You Save 1% ($ 0.06)

STM 2.50-2.75" 45° Silicone Reducer Coupler (STM-R45B-250/275)


STM 90° Straight Leg Silicone Coupler - 2.75" ID (STM-90B-275)


When you need to join pipes together in your vehicle, a silicone coupler is the clear choice. (Well, we don’t actually have any clear couplers, but we have black, blue, red and other cool colors.) Silicone couplers have made serious waves in the performance automotive industry and are the most popular choice for exhaust adapters, forced induction systems and air intakes. These short hoses are designed for the extreme forces of high-performance driving, while being stronger, more durable and more resistant to contamination than factory rubber or plastic couplers. With silicone couplers and hump hoses from manufacturers such as Mishimoto, STM, Torque Solution and Turbosmart, your pipes will always get along.
Modern Automotive performance carries silicone couplers and silicone reducer hoses that can join a variety of pipe diameters. Whether you need a 2.5 to 2.75 inch exhaust adapter, 2.75 to 3 inch exhaust adapter or even a 4-inch couple, you can find in in our inventory. We have straight couplers and elbow couplers so you can set up your piping in the way that’s most efficient for your engine. Our 3-ply and 4-ply silicone couplers can withstand engine temperatures of more than 400 degrees, and are flexible enough to absorb the shocks of rough driving or a hard turbo boost. All the while, they won’t burst or even swell when you drop the hammer.
Then again, none of that will matter if you don’t have a way to secure your couplers in place, which is why we also carry stainless steel T-bolt clamps of all sizes. These clamps have self-locking nuts and are specially designed to work with silicone. A universal silicone coupler is a smart choice for any turbo system or intake, and our expert mechanics are available by phone or email to assist you with questions. With our low prices, same-day shipping and Loyalty Rewards program, conscious coupling in your engine bay has never been easier.

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