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Coupon Code Boost5 at checkout

Due to an increase in sales volume and demand, please allow some extra time for items to ship and please inquire about inventory if it is not directly listed on the product.

Financing available for as low as 0%.

We're open and shipping!

Coupon Code Boost5 at checkout

Due to an increase in sales volume and demand, please allow some extra time for items to ship and please inquire about inventory if it is not directly listed on the product.

Financing available for as low as 0%.

GSC Super Alloy Exhaust Valves +1mm Oversize - 04+ STI / 02-14 WRX

Running high horsepower with high EGT's requires a valve that will last in 2000F conditions. GSC 33mm +1 Oversize Super Alloy Exhaust valves have chrome polished stems to create a smooth, durable finish for added life and better lubricity especially when paired with the GSC Manganese bronze valve guides. Strength, heat resistance and performance are engineered into every valve. Under head dish is maximized for weight savings while swirl polished and backcut heads promote better air flow without sacrificing durability.

Sold in a set of 8.



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