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Copper Clad Exhaust Lock Nut - RX-7, RX-8, Rotary Engine

$1.45



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  • Model: 10mil-copper

Minimum order quantity: 4

Used to fasten exhaust manifold/headers TO the engine. High-heat, premium copper clad, exhaust manifold/header to engine block lock nut. These are the same nuts found in the Himni Racing V2 turbos kits. Top lock design holds strong under the most demanding rotary engine conditions but is not prone to seizing like standard stock steel nuts. They hold strong & remove smoothly. They will keep your housing studs in tack for years to come. Busted, removed, stripped or seized studs & housing threads are no longer an issue. Price is per nut. Minimum order quantity is 4.

Below is a quick, off hand fitment for your application.

79-85 FB Mazda RX-7 (Fits both 12A & 13B)
Manifold/Header to Engine: 4 needed

86-92 FC3S Mazda RX-7 (13B 6 port Non-turbo)
Manifold/Header to Engine: 4 needed

87-92 FC3S Mazda RX-7 (13BT 4 port Turbo II)
Turbo Manifold to Engine: 4 needed
Turbocharger to Manifold: 4 needed
Downpipe to Turbocharger: 3 needed

93-99 FD3S Mazda RX-7 (13B-REW Twin Turbo)
Turbo Manifold to Engine: 4 needed
Twin Turbochargers to Manifold: 6 needed
Downpipe to Twin Turbochargers: 4 needed

13B-RE Cosmo Engine (2 rotor, twin turbo)
Turbo Manifold to Engine: 4 needed

20B Cosmo Engine (3 rotor, twin turbo)
Turbo Manifold to Engine: 6 needed
Twin Turbochargers to Manifold: 6 needed

04-09 Mazda RX-8 (2 rotor Renesis)
Manifold/Header to Engine: 6 needed


  
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