Select the year of your Infiniti G35:
                                    Manley 37.5mm Race Flo Intake Valve for Nissan 3.5L VQ35DE (03-06)
If you’re looking to upgrade your Nissan 3.5L VQ35DE engine from 2003 to 2006, the Manley 37.5mm Race Flo Intake Valve (Part Number: 11150-12) is an exceptional choice. With over 40 years of experience in crafting high-performance stainless steel valves, Manley Performance has a reputation for quality and durability that stands the test of time.
Key Features
- Head Diameter: 37.5mm
 - Stem Diameter: 6mm (.2362")
 - Overall Length: 96.5mm
 - Tip Length: 3.5mm
 - Underhead Angle / Radius: 22° x 5/16"
 - Margin: .050"
 - Seat Width: .075"
 - Head Design: 17° Dished Head
 
Performance Benefits
The Manley intake valves are engineered to maximize airflow and performance, making them perfect for both street and race applications. Their unique "Pro-Flo" design reduces the stem diameter in the fillet area, which not only enhances airflow but also decreases overall valve weight. This means your engine can breathe better and operate more efficiently.
Built to Last
Constructed from a high-grade stainless steel alloy, these valves are designed to withstand extreme conditions. The chrome stems and polished underheads not only look great but also resist wear and tear, ensuring longevity. Whether you're cruising on the streets or pushing your limits on the track, these valves have got you covered.
Fitment and Compatibility
These valves are specifically tailored for the Nissan 3.5L VQ35DE engine found in models from 2003 to 2006. When installing, it’s crucial to check your valve guide size to ensure the right clearance. You may need to hone the guides for optimal fitment when replacing factory valves.
Customer Feedback
Customers rave about the performance improvements after upgrading to the Manley valves. Many have noted enhanced throttle response and increased horsepower. Here’s what some users are saying:
- "These valves made a noticeable difference in my car's performance. Highly recommend!"
 - "Installed them in my VQ35DE and couldn't be happier. Great quality!"
 - "Best valves I've used for my racing setup. They hold up under pressure!"
 
Final Thoughts
Choosing the Manley 37.5mm Race Flo Intake Valve (11150-12) means investing in quality and performance for your Nissan VQ35DE engine. With their advanced design and robust materials, these valves are ready to take your vehicle's performance to the next level. Get ready to enjoy the drive!
Note: Always verify your valve guide size for proper clearance before installation.
                                    ⚠ WARNING:
                                    Cancer and Reproductive Harm
                                    https://www.P65Warnings.ca.gov
                                
| Make Vehicle | Model | Year | 
|---|---|---|
| 
                                                    
                                                        2003-2006 Infiniti G35  | 
                                                G35 | 2003-2006 | 
| 
                                                    
                                                        2003-2006 Nissan 350Z  | 
                                                350Z | 2003-2006 | 
| 
                                                    
                                                        1998, 2003-2006 Nissan Altima  | 
                                                Altima | 1998, 2003-2006 | 
| 
                                                    
                                                        2000, 2003-2006 Nissan Maxima  | 
                                                Maxima | 2000, 2003-2006 | 
| 
                                                    
                                                        2003-2006 Nissan Murano  | 
                                                Murano | 2003-2006 | 
| 
                                                    
                                                        1996, 2003-2006 Nissan Pathfinder  | 
                                                Pathfinder | 1996, 2003-2006 | 

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.
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