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Description
Capristo Ferrari 355 - Bypass Exhaust Valve KitFerrari 355 Exhaust By Pass Valve Kit (Incl. Sealing Rings) This valve has been constructed specifically to address problems previously associated with failure of the OEM unit. The OEM valve typically failed in the closed position, resulting in high exhaust back pressure, which resulted in engine and or header heat damage. The CAPRISTO replacement valve has been redesigned in a different configuration. Should a vacuum and or electrical failure occur,
Ferrari 355 Exhaust By-Pass Valve Kit (Incl. Sealing Rings)
This valve has been constructed specifically to address problems previously associated with failure of the OEM unit. The OEM valve typically failed in the ‘closed’ position, resulting in high exhaust back pressure, which resulted in engine and/or header heat damage. The CAPRISTO replacement valve has been redesigned in a different configuration. Should a vacuum and or electrical failure occur, the valve automatically reverts to the open position, relieving excess back pressure. This protects engine components and exhaust headers from heat damage.
The CAPRISTO valve is supplied with the necessary vacuum tubing and required electric solenoid valve. All parts fit into the original mounting place with no modifications needed.This valve now ships WITH sealing rings. No need to purchase the seals separately.
The system is fully compatible with the optional CAPRISTO remote control. The remote control gives the driver the option to open the valve at will, with the touch of a button. A more comprehensive description of the standard remote control for the valves is available under our remote controller section.
The Standard Remote Control Kit IS NOT INCLUDED in this package.
Note to installer:
As the CAPRISTO valve uses vacuum to close (OEM use vacuum to open) please ensure that the vehicle generates a vacuum pressure of at least 0.7 to 0.8 bar or 10 to 12 psi. This ensures that the valve will close properly without any rattling. All vacuum lines and equipment relying on vacuum should be inspected if this vacuum is not generated by the vehicle.
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.1 ★★★★★
Based on 10 reviews
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Product Reviews
★★★★★ 5
Perfect fit
Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Glossy Black
Perfect fit for the 2004 E46 BMW.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
★★★★★ 4
Price
Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Glossy Black M-Color Dual Line
I installed this on an e46 325ix sedan, they only worked, one of them is just a little loose. I don't know how long they last, because every time I open the bonnet, the lever bothers me a little?
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Reviewed in the United States on March 19, 2023
★★★★★ 1
Not proper size
Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Glossy Black, Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Glossy Black
Driver side is smaller and every time I open the hood it fall down. I have to bend the lever to open the hood to install it. It look good but I’m not happy with it and I’m scared ti drop it while I’m driving. I have to check on it every where I go to be sure didn’t fall
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Reviewed in the United States on April 4, 2023
★★★★★ 5
Fits nicely
Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Carbon Fiber Dual Line Glossy Black
Product looks nice and fitted on a 2004 330i zhp perfectly.
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Reviewed in the United States on April 28, 2023
★★★★★ 5
perfect, worked for me
Size: Compatible with 2002-2006 BMW E46 3-Series Sedan, Color: Chrome
worked on 2002 bmw 330xi
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Reviewed in the United States on September 24, 2024
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