Unless you have a new high pressure fuel pump or fuel pump internals down pipe should be close to one of the last bolt on's you do. The down pipe on the speed3 is super restrictive and once you put a free flowing down pipe the fuel system can't keep up and you get lean spots.....lean spots =...
Hey guys im looking to sell my Fmic consisting of PG piping+t-bolt clamps and a Corksport core. Im looking to sell it because i decided with the numbers im aiming for it will be easier for me to just get a Topmount. The Core was used by the previous owner but is in great shape the piping is...
If you run it 50/50 you get a minor back fire at shift points on occasion due to the rich spot. Mazdaspeed 3s are not ment for full vta you will run really rich at shift points. Running it full recirc its pretty tame sound wise I'm thinking about trading mine for a hks