Ferrea 35mm Competition Plus Intake Valve Subaru WRX / STI EJ25 EJ257 2004-2021 (QTY 8)

Rated 5.0 out of 5
Based on 1 review
10 In stock
Intake and Exhaust Valves

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Part #: F1520P

Ferrea Competition Plus Valves have built a reputation as the industry's most reliable extreme duty valve. Constructed from aerospace quality alloys, for high tensile strength, Ferrea valves undergo an exclusive two-step slow forging process to ensure proper grain flow and virtually eliminate any damage to the material structure. The valves are then heat treated and stress-relieved over a 48-hour period, which is the crucial base of our molecular integrity. These valves feature avionics-quality hard chrome along with a specially applied hard tip.

Ferrea's engineering staff spends countless hours conducting flow bench tests to achieve an optimum balance of flow, velocity and efficiency in the design of this valve. As a result, these valves incorporate smoother radiuses and unique undercuts. The optional Super Alloy exhaust valves are designed for extreme racing conditions with high temperatures.

Type: Intake
Head Diam.: 36mm
Stem Diam: 5.97mm
Overall Length: 104.6mm
Tip Length: 3.5mm
References: 19º Super Flo. Stock Size.


Any returns for an exchange or refund will be allowed within 30 days from the receipt of your order and must be authorized prior to shipping with an RMA Number (Return Merchandise Authorization). To receive your return instructions and RMA# please use our online form under Returns and Exchanges! Once you receive your return instructions please ship out the item at your earliest convenience and provide the tracking number to your customer service rep. The customer will be responsible for all shipping fees. Before shipping your product back please make sure you package it up exactly how you received it and in all of its original packaging. All items must be in brand new and resalable condition. Once the item is received it will be inspected and a credit will be issued accordingly. All returns are subject to a 15% restocking fee. Any returns received without an RMA# will be charged a restocking fee and any shipping fees associated with the return. An item that does not ship directly from IIR's warehouse is considered a "special order" item and no returns will be authorized.

average rating 5.0 out of 5
Based on 1 review
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100% of reviewers would recommend this product to a friend
1 Review
Reviewed by Boost B.
Verified Buyer
I recommend this product
Rated 5 out of 5
Review posted

Best valves you can get!

These Ferra competition valves are great! High reving and help make good power!!

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Ferrea 35mm Competition Plus Intake Valve Subaru WRX / STI EJ25 EJ257 2004-2021 (QTY 8)
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