I dont know if you guys remembered. But few weeks ago I posted a post. That my car was slow, and I had the straight pipe. o-60 was 8.2 and 1/4 was 16.5.
Now I just put back catolytic back on and a smaller muffler. Waited few days for the ECU to adjust. Now 0-60 my first run was 7.6 second was 7.8 and third 7.8. Didnt try the 1/4 yet. So who ever wants that straight pipe, I suggest you stay away. It will only make noise and ull have now low end torque.

 

Straight pipes are for top end power.

 

Mods generally add high end not low end......take off that exhaust and intake and you will gain even more low end, but its not going to be as fast.......

 

told ya so