Is There A Reason You Dont Wanna Go With Long Tubes?

 

Emissions.... long tubes move the placement of the cats so therefore they are not emissions compliant.

 

I opted for the AS&M (or you can get the "cheaper" RK Sports) and I have been VERY happy with them. Ground clearance hasn't changed and I dropped .5 in the quarter. You probably won't get them new for under $500 but used shouldn't be a problem (especially with the RK Sports).