my 93 prelude si has the 4ws its bad ass but my car has 200,000 miles i am afraid of some problem that may occur. it might be costy anyone had any problems let me know plz thx

 

93 prelude si (4ws) whats better header or 4 2 1 exaust on the h23 no thurbo just intake + exaust

 

4-2-1 header is exactly that. the big difference from stock is: stock= exhaust manifold, aftermarket= header. Headers flow better no matter what, so I would definitely add one. As far as 4ws is concerned, i have 130000 on my 92, and have not had a problem yet. But, I don't know what 200000 will add to problems.

 

i do have a 4 2 1 cast iron ?head or manifold but someone said it wasnt stock plus i had my wheels off and not much could go wrong on4ws