Universal 38mm intake manifold adapter for Keihin and Mikuni PE-PWK carburetors intake manifold interface adapter for conversion.

【Product Overview】This is a universal, high-performance intake manifold with a 38mm inner diameter. It is specifically designed for connecting modified or replaced 38mm carburetors to cylinder heads and is a common adapter for increasing the performance of motorcycle, ATV, quad, or go-kart engines.

【Basic Compatibility】

Carburetor Interface Compatibility: Perfectly compatible with most common modified 38mm carburetors, including KEIHIN PWK 38mm, MIKUNI™ 38mm, and similar flat flange interfaces.

Also compatible with many PE series carburetors and other 38mm carburetors with the same standard flange size and hole spacing. Important Note: This product is a standard interface adapter. Buyers should check compatibility at three points: Carburetor side: Ensure that the lower flange of your carburetor is a standard 38mm flat interface and that the hole spacing matches that shown in the product image. Engine side: Check that the inner diameter and angle of the other end (usually a flared rubber or silicone tip) match the size and shape of your engine's intake port (interface to the cylinder head). Positioning: Ensure that the length and angle allow for easy installation on the frame without interfering with the fuel tank, frame, or other components.