Cometic 100mm Bore .045 inch Head Gasket Subaru WRX / STI EJ25 Models | C4264-045 Vehicle Model_STi The Hi-Power exhaust series from

The Hi-Power exhaust series from HKS offers greater flow and higher-RPM power gains by eliminating unnecessary bends in the exhaust piping

Part #: TRU-TH-S101

84MM Cover Requires TGV Delete to fit in stock location

Even though carbon buildup isn’t as severe as most direct-injected engines

Help that K20 breathe

Cometic 100mm Bore .045 inch Head Gasket Subaru WRX / STI EJ25 Models | C4264-045 Vehicle Model_STi The Hi-Power exhaust series fromCometic multi layer steel (MLS) head gaskets for the for the Subaru 2. 0L & 2. 5L EJ series turbo engines are comprised of three layers of stainless steel. Cometic uses stainless steel for increased strength, it's ability to rebound, and improved corrosion resistance. The outer layers of the gasket are embossed and coated on both sides with Viton rubber, to meet the demands of a variety of harsh sealing environments, load conditions and surface