ARP Custom Age Head Stud Kit Subaru WRX 2002-2014 / STI 2004-2021 DOHC

Rated 5.0 out of 5
Based on 1 review
ARP
SKU: arp260-4704
Availability: 37 In Stock Learn more
Type: Bolts/Studs
Regular price
$589.84
Regular price
$655.40
Sale price
$589.84
Instant Discount

Regular Price: $655.40 - Instant discount: $65.56 = $589.84


Subtotal: $589.84

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  • Orders from Friday to Sunday arrive by the following Tuesday.

Delays can happen. Contact us if your order doesn't arrive on time for a $20 credit on your next purchase. Minimum order must be $99

Part #: 260-4704

If you are planning on making 500-675whp, these are the head studs for you!


ARP head studs for your Subaru WRX and STI ARP uses a premium grade 8740 chrome moly that is rated far superior to "aircraft" quality. Then, each stud is placed vertically in special racks and precisely heat-treated to 270,000 psi. These studs use a 12-point style nut and are OE-11mm sized. The head of the stud uses a 4mm Allen to thread the studs into the block.

ARP studs are manufactured to such exacting tolerances, you will note that gaskets and cylinder heads literally glide into position and are perfectly aligned. ARP studs are thread rolled after heat-treat, which gives them about 1000% (that's ten times) better fatigue strength than those studs that are threaded prior to heat-treat (a very common industry practice). It costs a lot more to do it this way, because it's tough on tooling, but the results are well worth the extra effort. Premium quality parallel ground washers are also included with each kit. ARP head studs are a must for performance engines seeing increased boost, and they are truly the best on the market for your WRX or STI.

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
Review posted
Reviewed by Randy F.
Verified Buyer
Rated 5 out of 5

Best money can buy, want a long lasting build get the best studs

Sliding the heads down was a speechless moment, sheer precision fitment perfect, and a must have for a big boost ej to protect those gaskets

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