question, i see all this talk of H and Y pipes with exhasut systems. I bought the HKS from intensemotorsports, and i picked myself up some Labree test pipes in a group buy. Ive also got a pair of Stillen sways sittin in the box waiting til someone gets underneath my car. My question is are these extra Y and H pipes appliable to the HKS system, or does the HKS provide that section in as efficient a way as these extras?
also, Before i do the install, i want to gather a set of Headers to complete the flow. Any comments, advice, would be greatly appreciated as to im no mechanic. I am thinking of grabbing the Crawford headers after reading the reviews. As i take it, all are about the same, except the crawfords stand out above the rest, which is reason enough for me to get them... advice please?

 

The HKS Hi-Flow exhaust set-up is complete from the cats on back. You will not need anything else. Actually, the HKS has a "H" tube welded in already. You are going to love this exhaust. Enjoy!

I have been contemplating Strup headers, myself. Haven't quite decided on whether to install headers on not. However, if I do, they will be the Strup set-up, because of the excellent build quality, price and the reported ease of installation.

 

Is there any gain from headers?

 

Here is some data for Strup hearders. I have yet to see an independent test.

https://g35driver.com/forums/exhaust-vendor/88445-strup-performance-headers-sale-free-shipping-free-t-shirt.html