mazdaspeed32007
Member
- :
- Mazdaspeed3
who has a downpipe and what were the gains? worth it? im getting a custom exhaust monday and wanted to know if the dp was a well worth mod. im leaving in the first cat and putting on a custom tbe with only on high flo and megan muffler. i know the 1st stock cat is a cheese grater but am afraid to delete the thing due to the turbo seal. i know ill get some sick gains with what im going with for now but i almost want to just get either the turbo xs dp or the corksport. turbo xs shows like a 50 gain on both hp and tq, corksport the same? any feedback on these numbers and such? thanks guys.