Improves engine performance and increases horsepower by significantly reducing exhaust flow restriction. High flow design to improve performance and power, 10-15 horsepower and torque gain (estimated). O2 sensor bung insertion, gaskets, & pictured hardware is included. Inlet: 1.75 / 44.4mm.Outlet: 2.0 / 50.8mm. O2 simulators may be required if CEL is triggered. Not intended for street applications. This item is intended for off road racing & competition purposes only. No installation guides are included, we highly recommend seeking professional installation.
Buyers outside of the U. Please check with your country's government website. Tracking numbers are available as soon as they are created and processed. Please note that we are not responsible for any kind of delay if P.Box address or any other undeliverable addresses were provided. We do not offer local pick-ups. Replacements will not be sent until the claim is approved. Instructions are not included unless stated in the description. It is highly recommended to seek professional installation as we are retailers of the parts and not trained technicians. We can provide minimal support, but do our best to support our customers. NOTE: All of universal and turbo parts may require slight modification in order to fits perfectly. Most aftermarket items are produced for off-road and/or show purpose only. These items are not suitable for regular driving. User must follow the directions given and any misuse of this product is at his/her own risk. The manufacturers, distributors, and retailers will not be held responsible for using this item other than specified above. The item "Stainless Steel 4-2-1 Headers Manifold For 1990-1993 Mazda Miata 1.6L l4" is in sale since Thursday, April 22, 2021. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Exhaust & Emission Systems\Manifolds & Headers". The seller is "ajpdistributors" and is located in La Puente, California. This item can be shipped worldwide.