Originally Posted by Nicname
I think it's best I stick with gintani as well. I love the exhaust, the x pipe has to be great quality
I have a complete Gintani system X-pipe with HFC and sport valved rear section.
I could not be happier. A friend has the Challenge with Eisenmann race and its is loud in the extreme. The Gintani will retain the deep throaty V8 sound where the Challenge will give a raspy sound. The Gintani cats are in the same position as stock, so the only downside is the ground clearance,there is more if they are further back,if your car is lowered quite a lot it's a small factor. On the upside you can change the front section to HFC, resonated (cat substitute) or or straight through (cat delete) without cutting, simply by changing the front pipes.
I have numerous videos of the system on FB and YouTube (links in signature) sound is quite accurate and truly amazing.