TOMEI TA301A-SB02A Poncam Camshafts Avcs 252/252 10.30MM EJ257

( Brand: Tomei ), ( Manufacturer Part Number: TA301A-SB02A ), ( Type: Camshaft ), ( Engine Codes: Ej255 Ej257 ), ( Manufacturer Warranty: 1 Year ), ( Vehicle Make: Subaru ), ( Material: Steel ), ( Vintage Part: No ), ( Performance Part: Yes )

Review TOMEI Poncam Camshafts 252/252 04-07 Avcs fits EJ255 STI WRX 2006–2014

Introducing the Tomei TD03-AL10S-252/252 Poncam Camshafts (Part No. TA301A-SB02A) specifically designed for Subaru Impreza WRX and STI models with the EJ257 and EJ255 AVCS engines from the years 2004 to 2007 (STI) and 2006 to 2014 (WRX). These high-performance camshafts are the result of Tomei's extensive research and development in the field of engine tuning.

The Tomei Poncam Camshafts are characterized by their unique design, featuring a 252/252 duration at 0.5mm lift and a 10.30mm intake and exhaust lift. These dimensions provide an optimal balance between power and drivability, making them an excellent choice for those seeking to enhance the performance of their Subaru without compromising daily drivability.

These camshafts are CNC-machined from top-quality billet aluminum material, ensuring precision and durability. The surface finish is polished to a mirror-like smoothness, reducing friction and promoting efficient engine operation. The camshafts also feature Tomei's proprietary camshaft grind, which has been developed through extensive testing and refinement to deliver maximum power and torque gains.

The Poncam Camshafts are also compatible with the Subaru AVCS (Active Valve Control System), allowing for optimal valve timing and combustion efficiency. This results in improved power output, better fuel economy, and smoother engine operation.

Installation of these camshafts is relatively straightforward, with no need for major engine modifications. However, it is recommended that a professional mechanic or tuner performs the installation to ensure proper setup and tuning of the engine.

In summary, the Tomei TA301A-SB02A Poncam Camshafts offer a significant performance upgrade for Subaru Impreza WRX and STI models with the EJ257 and EJ255 AVCS engines. With their unique cam profile, precision machining, and compatibility with the AVCS system, these camshafts provide a balanced power increase, improved drivability, and smoother engine operation.

A Detailed Analysis of Tomei Ta301A-SB02A PONCAM Camshafts for Subaru STI (04-07 ej257 WRX, 06-14 ej255 Avcs)

The Tomei Ta301A-SB02A PONCAM camshafts are aftermarket performance camshafts designed for Subaru STI models with ej257 and ej255 engines. These camshafts offer improved power and torque, enhanced engine response, and increased rev limit. In this analysis, we will discuss the pros and cons of investing in these camshafts to help you make an informed decision.

1. Performance Enhancement: These camshafts provide significant power gains, particularly in the mid to high RPM range, which can contribute to improved engine responsiveness and overall performance.

2. Rev Limiter Increase: The Tomei Ta301A-SB02A camshafts allow for a higher engine rev limit, enabling the engine to reach its full potential and extract maximum power.

3. Durability: Tomei is a well-known and reputable brand in the automotive performance industry. Their camshafts are known for their high-quality materials and robust design, ensuring longevity and reliability.

4. Improved Idle Stability: These camshafts offer improved idle stability, which can help prevent engine stalling and improve overall drivability.

1. Complex Installation: Installing aftermarket camshafts is a complex process that requires specialized knowledge and tools. It is essential to ensure the installation is done correctly to avoid potential engine damage.

2. Increased Engine Noise: The Tomei Ta301A-SB02A camshafts can result in increased engine noise, particularly during acceleration. This noise may be preferred by some enthusiasts but may be a concern for others.

3. Fuel Consumption: Performance modifications like these camshafts can lead to increased fuel consumption, which can add to the overall cost of ownership.

4. Cost: The Tomei Ta301A-SB02A PONCAM camshafts are a premium aftermarket product, and their price point may be a barrier for some potential buyers.

The Tomei Ta301A-SB02A PONCAM camshafts offer significant performance benefits, including improved power and torque, enhanced engine response, and increased rev limits. However, these benefits come at the cost of a complex installation process, increased engine noise, higher fuel consumption, and a premium price point. Ultimately, the decision to invest in these camshafts depends on your specific goals, budget, and willingness to accept the potential cons. If you're looking for a significant power gain and are willing to invest in the installation process, these camshafts may be worth considering. Alternatively, if you prioritize ease of use and a quieter driving experience, you may want to explore other performance modifications or hold off on upgrading your camshafts.

Details:

High valve lift allows huge amount of air to flow in, yet it mechanically damages the system and gains friction loss. Tomei have worked to get an ideal well-balanced profile of camshaft and succeeded give it 1.3 1.5 times more effective area than regular camshafts Duration 252. However, when tuning the engine strictly, it should be carried out with idea of securing effective area valve not only by duration timing and height cam lift, but also through improvement its intake efficiency. Also, wide cam duration will derive great power at high RPM, but it gives rough engine character low RPM too.

Single AVCS, Tomei presents the popular poncam.

part #: ta301asb02a prices

• $418.00-$880.00

specifications cashalif:

• for models: Ej255, Sti, Wrx
• for years: 2006-2014
• brand: Tomei
• mpn: Ta301a-sb02a
• type: Camshaft
• engine codes: Ej255 Ej257
• manufacturer warranty: 1 Year
• vehicle make: Subaru
• material: Steel
• vintage part: No
• performance part: Yes

returns cashalif:

• policy: No Returns

offer cashalif:

• options: Ship-to-home
• quantity: 1
• started: May 11, 2026
• best offers: True
• availability: In Stock
• sold: 0

payments cashalif:

• money order
• wallet: Google-pay
• other
• credit card: Visa

general cashalif:

• Engines Engine Parts > Valvetrain Components > Camshafts
• condition: Used

shipping cashalif:

• cost: $11.60
• carrier: UPS
• transit: 4-10 Days
• service: UPS Ground Saver
• class: Economy
• type: Calculated

seller cashalif:

• rating: 0.0%
• city: Macomb, Michigan
• # reviews: 0

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