P2M brake master cylinder heat shield for Nissan S13/S14 (dual fit) blocks heat from the exhaust manifold area from your brake master cylinder. It is a safety item to prevent your BMC from over heating which can leads to loss of brake pressure or damage to your BMC. This item is a great addition to people upgrading to aftermarket exhaust manifold or top mount turbo setup.
The heat shield will only work installing on Nissan S14 1995-98 240SX with THICKER type brake booster. Nissan produced 2 variations of brake booster for the S14 and the thinner type booster will not work