From looking at my intake and heads runners and ports
They were dark .

Currently have healthy six pack stroker .
With tti headers and full exhaust to stock tips
Have an h pipe with 2 1/2”
And dynomax muffs now

With trying to be somewhat stock appearing
Whats the best upgrade or x pipe to help out with
reversion without sounding like a race car at low rpm on street ?


Thanks in advance!