3 311mp3 Member : 01 mazda mp3 06 mazdaspeed6 Jan 22, 2010 #1 so i have a corksport racepipe, and i want to get a atp DP, if i get the dp with the cat will that replace the racepipe or is the cat IN the dp. in ortherwords is the difforance between the catted and catless dp an add on at the end of the dp.
so i have a corksport racepipe, and i want to get a atp DP, if i get the dp with the cat will that replace the racepipe or is the cat IN the dp. in ortherwords is the difforance between the catted and catless dp an add on at the end of the dp.
M ms6acton Member Contributor : 2006 Mazdaspeed 6 Jan 22, 2010 #2 cat is in the dp. this car has 2 cats.
