fits model: Ej255, Wrx, Sti. make: Subaru.

( Manufacturer Part Number: 12100AA291 ), ( Part Type: Bolt Rod )
The 12100aa291 Set for Subaru WRX STI and EJ255/EJ257 engines is a comprehensive kit designed to replace your worn-out or damaged connecting rods. This set is specifically engineered for these high-performance engines, ensuring a precise fit and optimal engine performance.
The rods themselves are crafted from top-quality materials, such as forged steel or aluminum alloy, depending on your engine's specifications. This material choice ensures durability, strength, and resistance to fatigue, even under the most demanding driving conditions. The rods are also precision-machined to ensure a perfect fit with your engine's crankshaft, reducing the risk of engine failure due to misalignment or looseness.
The set includes all the necessary bolts for installation, specifically designed for the EJ255 and EJ257 engines. These bolts are made from high-strength steel and are threaded to match the specifications of your engine, ensuring a secure and reliable connection. The bolts are also coated with a corrosion-resistant finish, helping to protect them from the harsh environments they'll encounter in your engine.
Installing the 12100aa291 Set is a straightforward process, with clear installation instructions included in the package. The kit also comes with any necessary warranty information, giving you peace of mind in case of any manufacturing defects.
In summary, the 12100aa291 Set is a high-quality, reliable replacement for your worn-out or damaged connecting rods. With its top-quality materials, precise fit, and reliable bolts, this set is an excellent choice for any Subaru WRX STI or EJ255/EJ257 engine owner looking to maintain or improve their engine's performance.
Pros of buying a 12100aa291 set for wrx sti ej255 and ej257 bolt rods:1. Compatibility: These bolt rods are designed to fit both the ej255 and ej257 engines, making them a versatile choice for owners of these Subaru models.
2. High-quality materials: The bolt rods are made from high-temperature alloy steel, ensuring strength and durability even under extreme conditions.
3. Improved performance: Upgrading the bolt rods can help improve engine performance by reducing flex and increasing power delivery, leading to better acceleration and overall driving experience.
4. Easy installation: The 12100aa291 set includes all necessary hardware and step-by-step instructions, making the installation process straightforward for most DIY enthusiasts.
Cons of buying a 12100aa291 set for wrx sti ej255 and ej257 bolt rods:1. Cost: Upgrading to stronger bolt rods can be an expensive investment, especially for those on a tight budget.
2. Potential for damage: If not installed correctly, these high-strength bolt rods can cause damage to other engine components or even the engine itself.
3. Limited warranty: The 12100aa291 set may not come with a long-term warranty, leaving the owner responsible for any potential issues that may arise.
Conclusion and recommendation:If you're an enthusiast looking to improve your Subaru's performance, upgrading to stronger bolt rods like the 12100aa291 set can be a worthwhile investment. However, it's essential to ensure that the installation is done correctly to avoid any potential damage. You may want to consider consulting a professional mechanic or researching the installation process thoroughly before proceeding. Additionally, while the cost may be high, keep in mind that these bolt rods are designed to last a long time, potentially saving you money in the long run by reducing the need for frequent repairs. In conclusion, if you're willing to invest in your vehicle and improve its performance, the 12100aa291 set for wrx sti ej255 and ej257 bolt rods could be a great choice.
Free shipping within the continental us. They are in perfect condition besides some light superficial scratches on the thrust surfaces from turning the short block over by hand while it was assembled. Up for sale is a brand new set of oem connecting rods and bolts for Subaru EJ255 and EJ257 engines.
They were removed from a brand new never ran or installed short block because I decided to go with an aftermarket rod that was better suited for my horsepower goals.