Proflow Silicone Hose Size Guide ▼

Straight Reducers▼

ID 1	ID 2	Length	Burst Pressure	Blue	Black
1.00"	1.25"	102mm	290 PSI	PFES201-100-125	PFES201-100-125B
1.25"	1.75"	102mm	290 PSI	PFES201-125-175	PFES201-125-175B
2.25"	1.75"	102mm	218 PSI	PFES201-175-225	PFES201-175-225B
2.25"	2.00"	102mm	218 PSI	PFES201-200-225	PFES201-200-225B
2.50"	1.50"	102mm	290 PSI	PFES201-150-250	PFES201-150-250B
2.50"	2.00"	102mm	218 PSI	PFES201-200-250	PFES201-200-250B
2.50"	2.25"	102mm	218 PSI	PFES201-225-250	PFES201-225-250B
2.75"	2.00"	160mm	175 PSI	PFES201-200-275	PFES201-200-275B
2.75"	2.25"	160mm	175 PSI	PFES201-225-275	PFES201-225-275B
2.75"	2.50"	160mm	175 PSI	PFES201-250-275	PFES201-250-275B
3.00"	2.00"	102mm	218 PSI	PFES201-200-300	PFES201-200-300B
3.00"	2.25"	102mm	175 PSI	PFES201-225-300	PFES201-225-300B
3.00"	2.50"	102mm	175 PSI	PFES201-250-300	PFES201-250-300B
3.00"	2.75"	102mm	175 PSI	PFES201-275-300	PFES201-275-300B
3.50"	2.75"	102mm	175 PSI	PFES201-275-350	PFES201-275-350B
3.50"	3.00"	102mm	175 PSI	PFES201-300-350	PFES201-300-350B
4.00"	3.00"	102mm	175 PSI	PFES201-300-400	PFES201-300-400B
4.00"	3.50"	102mm	175 PSI	PFES201-350-400	PFES201-350-400B
4.25"	3.50"	102mm	160 PSI	PFES201-350-425	PFES201-350-425B
4.50"	3.50"	102mm	148 PSI	PFES201-350-450	PFES201-350-450B
4.50"	4.00"	102mm	145 PSI	PFES201-400-450	PFES201-400-450B
5.00"	4.00"	162mm	145 PSI	PFES201-400-500	PFES201-400-500B
5.00"	4.50"	162mm	145 PSI	PFES201-450-500	PFES201-450-500B

Silicone Elbows 45°▼

ID	Leg Length	Burst Pressure	Blue	Black
1.00"	125x125mm	290 PSI	PFES102-100	PFES102-100B
1.25"	125x125mm	290 PSI	PFES102-125	PFES102-125B
1.50"	125x125mm	290 PSI	PFES102-150	PFES102-150B
1.75"	125x125mm	218 PSI	PFES102-175	PFES102-175B
2.00"	125x125mm	218 PSI	PFES102-200	PFES102-200B
2.25"	125x125mm	218 PSI	PFES102-225	PFES102-225B
2.50"	125x125mm	218 PSI	PFES102-250	PFES102-250B
2.75"	125x125mm	175 PSI	PFES102-275	PFES102-275B
3.00"	152x152mm	175 PSI	PFES102-300	PFES102-300B
3.25"	152x152mm	175 PSI	PFES102-325	PFES102-325B
3.50"	152x152mm	145 PSI	PFES102-350	PFES102-350B
3.75"	152x152mm	145 PSI	PFES102-375	PFES102-375B
4.00"	178x178mm	145 PSI	PFES102-400	PFES102-400B
4.25"	178x178mm	145 PSI	PFES102-425	PFES102-425B
5.00"	178x178mm	145 PSI	PFES102-500	PFES102-500B

45° Reducers▼

ID 1	ID 2	Leg Length	Burst Pressure	Blue	Black
1.50"	2.00"	125x125mm	290 PSI	PFES202-150-200	PFES202-150-200B
2.00"	2.25"	125x125mm	218 PSI	PFES202-200-225	PFES202-200-225B
2.00"	2.50"	125x125mm	218 PSI	PFES202-200-250	PFES202-200-250B
2.25"	2.50"	125x125mm	218 PSI	PFES202-225-250	PFES202-225-250B
2.25"	2.97"	125x125mm	218 PSI	PFES202-225-297	PFES202-225-297B
2.50"	3.00"	125x125mm	175 PSI	PFES202-250-300	PFES202-250-300B
2.75"	3.00"	152x152mm	175 PSI	PFES202-275-300	PFES202-275-300B
3.00"	3.50"	152x152mm	175 PSI	PFES202-300-350	PFES202-300-350B
3.50"	4.00"	152x152mm	145 PSI	PFES202-350-400	PFES202-350-400B
4.00"	4.50"	178x178mm	145 PSI	PFES202-400-450	PFES202-400-450B
4.50"	5.00"	178x178mm	145 PSI	PFES202-450-500	PFES202-450-500B

Straight Silicone Hose — 102mm▼

ID	Length	Burst Pressure	Blue	Black
1.00"	102mm	290 PSI	PFES101-100	PFES101-100B
1.25"	102mm	290 PSI	PFES101-125	PFES101-125B
1.50"	102mm	290 PSI	PFES101-150	PFES101-150B
1.75"	102mm	218 PSI	PFES101-175	PFES101-175B
2.00"	102mm	218 PSI	PFES101-200	PFES101-200B
2.25"	102mm	218 PSI	PFES101-225	PFES101-225B
2.50"	102mm	218 PSI	PFES101-250	PFES101-250B
2.75"	102mm	175 PSI	PFES101-275	PFES101-275B
3.00"	102mm	175 PSI	PFES101-300	PFES101-300B
3.25"	102mm	175 PSI	PFES101-325	PFES101-325B
3.50"	102mm	145 PSI	PFES101-350	PFES101-350B
3.75"	102mm	145 PSI	PFES101-375	PFES101-375B
4.00"	102mm	145 PSI	PFES101-400	PFES101-400B
4.25"	102mm	145 PSI	PFES101-425	PFES101-425B
4.50"	102mm	145 PSI	PFES101-450	PFES101-450B
5.00"	102mm	145 PSI	PFES101-500	PFES101-500B
6.00"	102mm	145 PSI	PFES101-600	PFES101-600B
60mm	102mm	218 PSI	—	PFES101-60B

Straight Silicone Hose — 610mm▼

ID	Length	Burst Pressure	Blue	Black
1.00"	610mm	290 PSI	PFES101-100L	PFES101-100LB
1.25"	610mm	290 PSI	PFES101-125L	PFES101-125LB
1.50"	610mm	290 PSI	PFES101-150L	PFES101-150LB
1.75"	610mm	218 PSI	PFES101-175L	PFES101-175LB
2.00"	610mm	218 PSI	PFES101-200L	PFES101-200LB
2.25"	610mm	218 PSI	PFES101-225L	PFES101-225LB
2.50"	610mm	218 PSI	PFES101-250L	PFES101-250LB
2.75"	610mm	175 PSI	PFES101-275L	PFES101-275LB
3.00"	610mm	175 PSI	PFES101-300L	PFES101-300LB
3.25"	610mm	175 PSI	PFES101-325L	PFES101-325LB
3.50"	610mm	145 PSI	PFES101-350L	PFES101-350LB
3.75"	610mm	145 PSI	PFES101-375L	PFES101-375LB
4.00"	610mm	145 PSI	PFES101-400L	PFES101-400LB
4.25"	610mm	145 PSI	PFES101-425L	PFES101-425LB
4.50"	610mm	145 PSI	PFES101-450L	PFES101-450LB
5.00"	610mm	145 PSI	PFES101-500L	PFES101-500LB
6.00"	610mm	145 PSI	PFES101-600L	PFES101-600LB
60mm	610mm	218 PSI	—	PFES101-60LB

Silicone Elbows 90°▼

ID	Leg Length	Burst Pressure	Blue	Black
1.00"	125x125mm	290 PSI	PFES103-100	PFES103-100B
1.25"	125x125mm	290 PSI	PFES103-125	PFES103-125B
1.50"	125x125mm	290 PSI	PFES103-150	PFES103-150B
1.75"	125x125mm	218 PSI	PFES103-175	PFES103-175B
2.00"	125x125mm	218 PSI	PFES103-200	PFES103-200B
2.25"	125x125mm	218 PSI	PFES103-225	PFES103-225B
2.50"	125x125mm	218 PSI	PFES103-250	PFES103-250B
2.75"	125x125mm	175 PSI	PFES103-275	PFES103-275B
3.00"	152x152mm	175 PSI	PFES103-300	PFES103-300B
3.25"	152x152mm	175 PSI	PFES103-325	PFES103-325B
3.50"	152x152mm	145 PSI	PFES103-350	PFES103-350B
3.75"	152x152mm	145 PSI	PFES103-375	PFES103-375B
4.00"	178x178mm	145 PSI	PFES103-400	PFES103-400B
4.25"	178x178mm	145 PSI	PFES103-425	PFES103-425B
5.00"	178x178mm	145 PSI	PFES103-500	PFES103-500B

Silicone Elbows 135°▼

ID	Leg Length	Burst Pressure	Blue	Black
2.00"	190x190mm	218 PSI	PFES105-200	PFES105-200B
2.25"	190x190mm	175 PSI	PFES105-225	PFES105-225B
2.50"	190x190mm	175 PSI	PFES105-250	PFES105-250B
2.75"	130x130mm	175 PSI	PFES105-275	PFES105-275B
3.00"	130x130mm	175 PSI	PFES105-300	PFES105-300B
3.50"	140x140mm	145 PSI	PFES105-350	PFES105-350B
4.00"	152x152mm	145 PSI	PFES105-400	PFES105-400B
5.00"	152x152mm	145 PSI	PFES105-500	PFES105-500B

Silicone Elbows 180°▼

ID	Leg Length	Burst Pressure	Blue	Black
1.00"	102x102mm	218 PSI	PFES106-100	PFES106-100B
1.25"	102x102mm	218 PSI	PFES106-125	PFES106-125B
1.50"	102x102mm	175 PSI	PFES106-150	PFES106-150B
2.00"	108x108mm	175 PSI	PFES106-200	PFES106-200B
2.50"	120x120mm	175 PSI	PFES106-250	PFES106-250B
3.00"	124x124mm	145 PSI	PFES106-300	PFES106-300B
3.50"	140x140mm	145 PSI	PFES106-350	PFES106-350B
5.00"	152x152mm	145 PSI	PFES106-500	PFES106-500B

90° Reducers▼

ID 1	ID 2	Leg Length	Burst Pressure	Blue	Black
1.50"	2.00"	125x125mm	290 PSI	PFES203-150-200	PFES203-150-200B
2.00"	2.25"	125x125mm	218 PSI	PFES203-200-225	PFES203-200-225B
2.00"	2.50"	125x125mm	218 PSI	PFES203-200-250	PFES203-200-250B
2.25"	2.50"	125x125mm	218 PSI	PFES203-225-250	PFES203-225-250B
2.25"	3.00"	125x125mm	218 PSI	PFES203-225-300	PFES203-225-300B
2.50"	3.00"	125x125mm	175 PSI	PFES203-250-300	PFES203-250-300B
2.75"	3.00"	152x152mm	175 PSI	PFES203-275-300	PFES203-275-300B
3.00"	3.50"	152x152mm	175 PSI	PFES203-300-350	PFES203-300-350B
3.50"	4.00"	152x152mm	145 PSI	PFES203-350-400	PFES203-350-400B
4.00"	4.50"	178x178mm	145 PSI	PFES203-400-450	PFES203-400-450B
4.50"	5.00"	178x178mm	145 PSI	PFES203-450-500	PFES203-450-500B

Part numbers shown are for reference. Contact us to confirm availability.

Collection: Silicone Hose, Bends and Reducers

Premium Silicone Hoses, Bends, Reducers & Brake Duct Hose

SS Racetech stocks a comprehensive range of Proflow silicone hoses, including Silicone Hose, Bends and Reducers, engineered for high-performance automotive applications. Our collection includes straight hoses, elbows, reducers, and brake duct hoses designed to withstand extreme temperatures and pressures.

Silicone Straight Hose🔗

Straight silicone hose tubing and performance couplers available in a range of diameters. Ideal for intercooler piping, intake, coolant, and custom plumbing applications.

Silicone Elbows - All Angles

🔗90° Elbows: Standard right-angle bends for tight routing
🔗45° Elbows: Gradual angle changes for improved airflow
🔗135° Elbows: Wide-angle bends for custom fabrication
🔗180° Elbows: U-turn routing solutions

Silicone Reducers🔗

Straight and angled reducers available in multiple diameter combinations for seamless transitions between different pipe sizes. Perfect for intake manifolds, intercooler piping, and custom turbo setups.

🔗Straight Reducers: Direct inline reducers for smooth transitions between different pipe sizes
🔗90° Reducers: Right-angle reducing bends for compact routing between different pipe sizes
🔗45° Reducers: Gradual reducing bends for smooth airflow transitions

Silicone Brake Duct Hose🔗

Flexible, heat-resistant brake duct hose designed to channel cooling air to brake rotors and calipers. Available in 51mm to 102mm ID sizes with 2-metre lengths. Essential for track cars and high-performance braking systems.

Silicone Vacuum Hose🔗

High-quality silicone vacuum hose for reliable performance in demanding automotive applications.

Have a question?

Silicone hose, bends & reducers FAQ

Are Proflow silicone hoses, bends, and reducers compatible with my specific fuel, oil, coolant, or vacuum system?

Absolutely! Our silicone hoses, bends, and reducers are designed for wide compatibility with most automotive fuel, oil, coolant, and vacuum systems. They’re available in a variety of diameters and shapes, including straight sections, 45°, 90°, 135°, and 180° elbows, as well as reducers and brake duct hoses. If you're not sure which size or type fits your setup, reach out with your vehicle details—our team is happy to help you pick the perfect match.

How do I know which silicone hose, bend, or reducer shape and size I need for my custom build or engine upgrade?

To choose the right hose, start by measuring the inner diameter (ID) you require, as well as the angles and lengths needed for your layout. Our collection offers multiple options—straight hoses for direct runs, elbows (45°, 90°, 135°, 180°) for turns, and reducers for connecting different-sized fittings. Check your engine bay or system diagram, note the connections, and use our product details for precise fit. Still unsure? Send us your setup or photos, and our experts will recommend the best combination for a leak-free, performance install.

How durable are these Proflow silicone hoses, bends, and reducers in high-performance or racing environments?

Our silicone hoses, bends, and reducers are made from premium, multi-layered materials built to handle high-pressure and high-temperature environments, making them ideal for racing, custom builds, and performance use. They’re highly resistant to heat, pressure, oil, and coolant, ensuring long-lasting reliability even in demanding automotive setups. Plus, the corrosion-resistant construction means you’ll get excellent durability for years to come—even under extreme driving conditions.

Are these silicone hoses easy to install, or do I need special tools to fit them?

You’ll find installation straightforward with our precision-engineered silicone hoses, bends, and reducers. They’re designed to fit snugly and securely, creating leak-free connections with standard hose clamps—no special tools required! For best results, clean the mating surfaces and use new clamps for a secure seal. If you have any installation questions, our team can walk you through the process or suggest any specific techniques for your chosen hose type.

Can I trust these silicone hoses to last, or will they degrade like rubber hoses over time?

You can count on SS Racetech premium silicone hoses, bends, and reducers for exceptional longevity compared to traditional rubber hoses. Silicone resists cracking, hardening, and deterioration from heat, oils, and chemicals much better than rubber. Our corrosion-resistant materials mean these hoses maintain their performance and flexibility for the long haul, making them a smart investment for custom builds, racing, or upgrading your daily driver’s reliability.