What is the best performance exhaust out there? I want something that gives great top end as to most mufflers but i dont want to compromise my low end. Any ideas? Oh yea 1999 ECSB 5.3L

 

arizona speed and marine longtubes, no cats, mandral bent 3" exhaust with an X pipe into dynomax bullet mufflers dumped. makes great low end pull, and the top end is great also. i have this setup minus the ASM headers, i have HAMMs