Dont buy. 1) shorty headers are a pain in the ass to install and u see relitive no gains in hp or tq. 2) that down pipe will elimate the cat and it has no o2 sensors in the downpipe. Do some searchin through this section of the forums, ull find alooooot information
I have one of those, just for the off road pipe, don't have the header installed. I had to weld a nut on to fit the 2nd o2 sensor, and your egr will have nowhere to go as the header has no provision for it. Don't expect it to fit right either, i had to torch and bend the pipe just to get it to fit.
Go for it.. if you want a header now, only have $100, and plan on getting a better header within a year or two. The header flows better than stock and of course the ORP flows good. Some people bring up the quality, but believe the quality of these ebay products has greatly improved in the past two or three years.. as far as fitment, I've heard some horrors stories the require modification to the header, but I've heard even more instances of them fitting just fine.
Search around.. you'll find alot of info on those headers on here.
Dont get it! Thats the stupid kit i bought about 5 months ago..lets just say you'll spend roughly 4-6 hrs(or more) replacing the header,the ORP doesnt even fit to the flex or EGR and to top it off the header cracked at the welds...badly(like almost in 2) sooo learn from my stupid mistake and get a svt set up. Like im currently doing F.Y.I. the only reason I got that kit was because my cat. collapsed and the heat shield was missing from the manifold when I bought the car(quite an eye sore)Learn from you mistakes I guess...do it right the first time