Quote:
Originally Posted by ender2664
Doesn't say it there. You must have posted the wrong link.
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The second link has a dyno graph and its the same link I posted in the other thread. If you want to do shorties its your choice. Just don't expect to feel much of a difference over stock. For the $$, 1 7/8" longtubes are far superior. The only reason to stick with shorties is if you don't want to tune the ECU and risk warranty work or if you have to stay emission legal for your state.