Cheapest would be a custom setup but you get no guarantees on how it performs. The next right now would be the NER kit. You get a great deal for about another day so if your gonna order do it now. you get 10% off the kit and 20% off anything else. The exhaust mani is made of stainless steel and has equal length runners. So IMHO yeah get the NER.
>Cheapest would be a custom setup but you get no guarantees >on how it performs.
I dont think any dyno sheets have been posted for NER kits either. Not being an ass, but it hasnt been proven to be reliable and perform well. Unless its behind the scenes and i havent seen it.