Srt-4 Caliber Downpipe O2 combo pipe.

This downpipe is a night and day performance adder! You will have to re-learn how to drive your car because the spool comes on alot sooner so you will need to tip in to the gas less during regular driving.

This downpipe replaces the two factory cats, the one in the o2 housing and the main one on the downpipe.

The pipe will not trigger a Check engine light however because it replaces teh cat this qualifies as an off road use only piece!

We have a highflow carb approved metalic cat which is the best flowing cat we can get a hold of which will actually pass emissions! YOu can select it in the options below.

NOTE: OPTIONS WILL BE MANUALLY ADDED ON MY END SO THE CALCULATIONS WILL BE OFF.