The Manley Valve - Exhaust, Valve-CUSTOM TI .3135 is a top-notch component designed for performance enthusiasts looking to upgrade their vehicle's engine. This valve is crafted with precision, ensuring optimal fit and function for a variety of applications, particularly for those looking to enhance their vehicle's exhaust system.
The specific part number for this product is 11937H-8, which is designed to fit various domestic vehicles. This valve features a diameter of .3135 inches, making it suitable for high-performance applications where exhaust flow is critical.
This exhaust valve is engineered for a universal fit, making it compatible with several vehicle makes and models. However, it is always advisable for customers to conduct thorough research to ensure compatibility with their specific engine type. This proactive approach helps guarantee that the valve will function seamlessly with your vehicle's setup.
Many users have praised the Manley Valve for its quality and performance. Customers report noticeable improvements in exhaust flow and engine efficiency after installation. Here are some highlights from trusted reviews:
Manley is a well-respected name in the automotive industry, known for producing high-performance engine components. The CUSTOM TI .3135 exhaust valve is no exception, offering durability and reliability that can withstand the demands of performance driving.
If you're looking to boost your engine's performance with a reliable and high-quality exhaust valve, the Manley Valve - Exhaust, Valve-CUSTOM TI .3135 is an excellent choice. Make sure to check compatibility with your vehicle to ensure you get the best performance out of your upgrade!
⚠ WARNING:
Cancer and Reproductive Harm
https://www.P65Warnings.ca.gov

Manley Performance, formerly called Manley Speed Equipment, was established in 1966 by Hank Manley shortly after his graduation from Brown University. His interest in the performance and racing traced back to 1960 when, at age 17, he rebuilt a 312 CID Ford V8 engine, installed a camshaft and three two-barrel carbs, and raced a ’56 Thunderbird on New Jersey’s streets. Initially, the company’s product lineup included stainless valves, lifters, camshafts, forged pistons, vanadium valve springs, pushrods, and timing chain kits. By 1998, Manley had outgrown its first Bloomfield, New Jersey facility and bought several acres in Lakewood, New Jersey. It was around this time that the brand’s name formally changed to Manley Performance. Nearly a decade later, the production space doubled in size.
Evolving in the Automotive SpaceLed by GM Michael Tokarchik in 2002, Manley entered the high-performance passenger car market as an OEM supplier of connecting rods for the 2003/2004 Ford SVT Mustang Cobra. Production reached 2500 rods per week without missing a single delivery date. Ford awarded Manley its highest ever supplier rating. Manley’s presence in the OEM market continued from there as a supplier for the Ford GT. After nearly 50 years since its inception, Manley continues to be globally recognized as the leading manufacturer of performance valves, connecting rods, cylinder head components, pushrods, drive and oil systems, and several other engine parts.
What is Manley’s Specialty?Manley Performance specializes in high-performance engine internals that range from stock replacements to full-on race applications. They have been the standard of the industry since their inception; a fact that still remains true now as they have ventured into new markets. Today, Manley Performance continues to re-define itself in a high-performance aftermarket industry that is constantly evolving. The brand has developed a wide range of new products for growing markets that include sport compact, Ford modular, and Chevy LS. Manley also maintains its leadership role with the traditional V8 engine business.
Get Manley Performance at Vivid RacingIf you are in need of a serious upgrade to your engine, then Manley Performance parts should be on your list. Like all of our suggested manufacturers, Manley uses the best materials available to ensure a quality part for your engine. We carry Manley connecting rods, crankshafts, pistons, and valve components. The large lineup of domestic parts includes sport compact vehicles, Ford modular engines, GM’s LS series internals, and HEMI product upgrades for Chrysler.
If you can’t find what you’re looking for or need help choosing the right part for your car, call our sales team at (480) 966-3040. We are here to make your buying experience a breeze.