So these are my two main options when it comes to Headers. Centerline here in the US which appear to be a 4-1 versus the British option with much longer primaries. Looks like the Centerline is the torque-centric option versus the “long-tube” / “higher bhp” option.
I’m curious what everyone’s thoughts and experiences are with this. I read a long thread on the AlfaBB from like 10 years ago that seems like everyone was dug into their own products and ideologies. I wonder if time has come to show which piece is suited for what goal and if I’m off from my observation

I’m curious what everyone’s thoughts and experiences are with this. I read a long thread on the AlfaBB from like 10 years ago that seems like everyone was dug into their own products and ideologies. I wonder if time has come to show which piece is suited for what goal and if I’m off from my observation


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