resonator or catalytic. Options

[trdproven]

whats a good deep tone deep hum resonator out there? like a greddy sp2? I have ebay headers and a 5zigen full 2.5" exhaust with bottle type resonator (looks like an SP2). What will help it get deep? Right now, its not so loud but it is high pitched on the higher rpms after i had put on the headers.

Options:
1. remove catalytic make straight pipe (may get louder)
2. remove catalytic make straight pipe and add vibrant ultra quiet resonator
3. add high flow cat and vibrant ultraquiet resonator
4. just add high flow cat and keep what I already have the bottle style resonator

This post has been edited by trdproven: Apr 10, 2010 - 4:38 AM

[trdproven]

Looking at OEM diagrams, I did not know where exactly the cat on a 5sfe was. After upgrading to the ebay header I realized this removes the 5sfe catalytic because I see it on the stock header I removed. But if you are running a 2.5 or 2.25 exhaust, there is still this bottle neck of the downpipe. I'm going to try to replace this pipe to match and see how it sounds, from there depending, i will change the resonator. I need to look under there first if there is a 2nd cat for sure. supposedly there is a precat.

This post has been edited by trdproven: Apr 11, 2010 - 8:21 PM