I've heard differing opinions on the quality/gains of XForce headers.

A lot of people say they're 'bang for buck' in this aspect whereas a few others think they're crap and make you lose power.


What do you guys think? I need a set of 4-2-1's for a B18B, 2.25" minimum or 60mm max, and the budget isn't huge.


Personal experiences and advice welcome.
Ta,
Andy.