It wont be any benefit on the 320...Originally Posted by Peter-E36
Will you fit M50 manifold / 328 exhaust? I've never seen or heard of anyone do it to a 320 and I'm curious what powergains it would reap. Do it...
The acutal inlet ports on the head are smaller, the manifold would fit but the air would just reach a step when it hits the ports. You would get no gains at all.
The 325i, 328i and 323i have bigger inlet ports so the manifold acutally matches the port size..
328 cats and rear box will fit but this is an M50 engine, I will need a Y pipe welding in for the lambda sensor.
so 325 is the one I need
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