Anyone install catless ‘offroad’ downpipes???

[t76turbo]

For off-road purposes only of course…….


Just curious to hear your experiences regarding performance etc.
I know some live in states that do inspections, emissions testing etc. But some don’t.

 

[Combatvet]

That would be loud AF, my catted downpipes are borderline too loud at WOT.

 

[t76turbo]

stock cat back or aftermarket?

 

[2020FordRaptor]

For off-road purposes only of course…….


Just curious to hear your experiences regarding performance etc.
I know some live in states that do inspections, emissions testing etc. But some don’t.

They would smell, any reputable tuners won’t tune for them, they would sound horrible with any aftermarket exhaust, and there’d barely be any gains.

 

[Combatvet]

stock cat back or aftermarket?

Thermal R&D 3"

 

[UNBROKEN]

The stink like shit, sound like shit and nobody worth tuning your car will touch it after you install them. Combine that with the low single digit HP difference over the normal 400 cell high flow cats and there’s literally no reason to run catless.