Wiseco Piston Set 99.75mm Bore WRX 2006-2014 / STI 2004-2021 Subaru Turbo Models | K598M9975AP

These Wiseco pistons are crafted from dedicated 2618 alloy forgings. They feature offset wrist pins, nitrided/napier steel rings, skirt coatings, complex dish and dome designs, and special skirt profiles. All these features ensure long - lasting performance and high power for boosted and nitrous engines. Specs include an 8.9:1 compression ratio and a 99.75mm bore. The set includes wrist pins, pistons, and rings.

To use these Wiseco piston sets, first make sure your engine is clean and free of debris. Carefully install the wrist pins, pistons, and rings following the standard engine assembly procedures. When using your boosted or nitrous engine with these pistons, avoid over - revving and sudden high - load operations right after installation. For maintenance, regularly check the pistons for wear and tear. You can use a mild engine cleaner to keep them clean. If you notice any abnormal noises or performance issues, stop using the engine and have it inspected. Keep the engine well - lubricated at all times to ensure the longevity of these pistons.