goin w this header for type r k swap for my eg ,, whats better 4-1 or 4-2-1 ?

 

Ask Danny what he thinks.You know the guy your getting the header from.

 

From what i have seen the 4-1 makes slightly more peak whp, like 1-3 whp. WHile the 4-2-1 does its job and gives great midrange. If your for straight dragging though, i suggest the the 4-1 since it also is cheaper.