Expect to get quicker spool-ups on the turbo and an increase of boost as well. The more bolt-on parts you have the more you will get out of the DP. We offer race only downpipe and also a legal OBDII complient downpipe which comes with a highflow metalic cat. There is very little difference in power, however the cat is 49 state legal unlike ultra flowing cats which will fail emissions and trigger a cel. If you select the cat option, we will manualy add it on our end, it will not reflect the check out. |