Crucial Cu-Seal Embossed Copper Gaskets

When the pros get really serious about gaskets, there is only one real choice of material – copper. Nothing else offers the sealing power of pure copper, because it's softer than steel and compresses to conform to the flange while expanding and contracting to maintain the critical tightness at the flange joints. These qualities add up to the most leak free, heat resistant gaskets you can buy. Once you try them, you won't settle for anything else!

Crucial Racing Systems Cu-Seal gaskets are the first (and only) pure copper gaskets available for the full range of Subaru turbocharged engines. Embossed to concentrate 100% of the sealing power of the gasket at the exhaust port insures a tight, permanent, leak-proof seal even on irregular surfaces. Now, even parts with irregular flange faces can be sealed with confidence!

Crucial has received feedback from many customers and tuning shops that these gaskets alone have literally solved previously-unsealable exhaust leaks. We receive requests from some of the top tuners in the country to supply these for their cars and their customers' cars. These are truly the absolute best that money can buy, and shockingly they're priced closely to and often less than the OEM replacement parts!

All of our Cu-Seal gaskets are annealed (heat treated) after being stamped, making the copper dead soft but retaining its strength. The now extra malleable gaskets take sealing to the next level. The best of the best, and completely reusable as long as you don't change parts (new parts means new flanges, and we recommend a fresh embossed section for another perfect seal)!

 Fitment - MY02-07 WRX, MY04-07 WRX STi, MY04-07 Forester XT, MY05+ Legacy GT and Saab 9-2x. (all USDM EJ205 and EJ257)

 All Crucial Racing Systems parts are intended for off-road use only.