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Anyone know the overall length of the RandomTechnology cat. # 923007?
That is the one for 3" downpipes.
I emailed them but they say there may be a delay in answering.
Any comments about that cat. would be appreciated.
TIA
I just hollowed out my cheap one.
Want to try a good one to see if I can leave it on the car even after I pass emissions.
Gained 5 psi. boost with the hollow one.
Anyone???......

2 boys now, need more GNs
I have the latest BGC 3" version of the 923007 Random Tech cat and it's 15-3/4" long end to end. That may be meaningless to you because anyone can spec their own lengths.
I had the same cat from 1996 which started to break up internally last year, I'm told due to water getting on the shell when it was hot. I don't think I picked up more than 1-2 psi boost after I helped it break down the rest of the way
Anyway, the later version seems to solve this problem with a sheet of something wrapped around the honeycomb to isolate it from the shell.
Hope that's the info you needed.
Mike [

Yes that is very good information.
A bit long but should fit in my car with the THDP.
I'm leaning toward leaving the hollow one on there now.
23psi. on alky. is addicting.