Quote:
Originally Posted by MyM2See
The only way to avoid the rasp is to keep stock DPs (with res or non res EL)
Another way is to possibly run aftermaket exhaust (with resonated EL mid, catless dp)
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In what sense aftermarket exhaust? The open valves would be designed in the same way as OEM muffler , meaning both straight piped in sport. Or is something wrong with the geometry of the OEM muffler that I'm not catching