basically what people are saying is......SAVE YOUR MONEY

it's not worth it to buy something you are going to have to replace later.......unless you are just a ricer and want to say i have a header

there is not really an off the shelf header for the prelude that gives any significant gains......search for rmf and smsp.....i think you can actually get a mild rmf for about $850....but the smsp is upwards of $1150

and btw, the 18's and hurting your acceleration, braking, and handling.....

so pick one bling or performance...and go with it...if you decide bling then the stainless steal megan header on ebay will net you the same tiny gains as a dc or greddy