'90 OEM resonator (for fabhack)

[Schrade]

Does someone have cutaway snappics of the early resonator?

I thought I saw it on Marc's site, but no luck finding it so far here. And NOT just showing the restrictive inlet; rather showing all the innerds. LINK???

Reason I ask here is that these 3" pipes are just a little over the limit WRT in-cab drone.

First thought is to use the factory resonator, with the inlets and outlets zipped off [OUT], and the 2 x 3" sections welded into the resonator inlet and outlet, and bolted back into place, after the X-section here:

https://lh5.googleusercontent.com/-rac1zrFZ2e8/U3-3CNj9TSI/AAAAAAAAETw/QSlpBSH2p_o/s1024/IMG_6542.JPG


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edit:
Found it - looks like the entire core is 1 5/8" throughout.

[WARP TEN]

The 93-95 resonator does not close down like that. It has a 2-5/8" I.D. It is more like straight pipes. --Bob

[Gunny]

The '96 LT4 resonator is also open & free flowing. I either heard or read that the LT4 resonator was slightly more open than the 95 ZR-1 resonator ... I have not personally measured & so can't comment other than to report what I've been told. That said, I'm running headers, no cats, and the LT4 factory system.