dave6666
Enthusiast
Can I post here just for fun?
Well, we removed the two foot long submarines also known as the factory cats, and installed the high flow metal Random Tech.
When I got the RTs in the mail, I actually called the company to ask if this little 9 inch long toy (make your own joke here) was a) Man enough for the job and b) Was going to be so loud I'd need a cotton ball dispenser in the dash. Clay at RT (good guy) assured me the testing proved they were indeed able to handle the Viper and that the noise - in his estimation - was hardly detrimental. JonB had said the same.
Well la tee freakin da... they were BOTH right. ... about that rear muffler.......
THANK YOU for the feeeeedback on this project. That cat flows 483CFM !! Way more than your heads do.... I suggest your next "budget" item would be as discussed to remove the rear muffler, even if just for an hour, or even a short drive. A local shop can do that premanently for $200 or so, retaining your OEM tips. That will wake it up a LOT, but not be obnoxious.
Does anybody thermally coat the pipes after the cats are deleted to keep more heat from radiating from the side pipes?
Nick
I did mine with VHT. Did it make any difference? Heck, I don't know. But they're not rusty!
Poor man's ceramic?
Hey, it looks like an ice cube dispenser to me! I painted mine too.
By the way, just completed the 7 hour round trip (further than I thought!) in the Viper after having the JonB RT cats in there. I can say...
1. Sills are definitely, no doubt about it, COOLER. Air circulates better front to rear, way less scorching surface area.
2. Exhaust change is that idle is deeper, 2500 rpm is deeper, but up to that and past that, virtually no change in db.
3. Acceleration tone is deeper, more growl. Still has the 'uneven' (love it or not) fire sound, just more authority.
I'm very pleased with the change. Will probably leave the rear muffler in... for now.