[Toyota John]

Originally Posted by gramicci101

The crossover pipe is just an overpipe, and the forward pipe is the front pipe. The front pipe has a cat and a resonator; the overpipe is just a pipe.

So you're basically running a straight front pipe, with no cat or resonator. I'm not familiar with the catback you have, but I'm guessing it doesn't have a resonator either. Which means that the only thing quieting the exhaust is the muffler, which is not up to the task.

If you want to run catless, try to find a front pipe that has a resonator in it. That'll help a little to calm things down. Two of the quietest aftermarket exhausts are the Perrin resonated and the Invidia Q300, which is also resonated. One of those and a resonated front pipe will make a difference. Having a catted and resonated front pipe will make more of a difference. The cat will help smooth out the rasp that you get from a UEL header that is running catless.

If you want to go even quieter, get a catted header, catted and resonated front pipe, and one of the exhausts I just mentioned.

This thread has a lot of youtube videos of different exhaust configurations.
http://www.ft86club.com/forums/showthread.php?t=6064

Both my Agency front pipe and cat back exhaust have a resonator. Here is a sound clip. [ame]http://youtu.be/SaQsnxkGrWA[/ame]