Follow along with the video below to see how to install our site as a web app on your home screen.
Note: This feature may not be available in some browsers.
Performance Upgrades - Maintenance - Modifications - Problem Solving - Off-Road - Street Trucks. Covering the Explorer, ST, Sport, Lincoln Aviator, Sport Trac, Mercury Mountaineer, Mazda Navajo, Ford Ranger, Mazda Pickups, and the Aerostar. Featuring H.I. - Human Intelligence.
has anyone ever taken the Catilytic Converters of of a first gen ex i mean no exhaust at all, just exhaust manifold and Y-Pipe? how does it sound?
Join the Elite Explorers for $20 each year. Elite Explorer members see no advertisements, no banner ads, no double underlined links,. Add an avatar, upload photo attachments, and more!.
havent taken y pipe with the pre cats or cat off yet but i do have a glass back exhaust i heard of someone elce with the 4.0 who took off the y pipe pre cats and just ran a single cat with no muffler and it sounded like a v8
if you remove the cats and muffler it is loud but i found it to be really annoying on long drives. i have no cat, a flowmaster 40 series and 2.5"pipe all the way from my headers and it sounds great.
i have pulled the exhaust off at the y and ran it just for a few just to c wat it would sound like and yeah it is very loud!! right now i got a flowmaster muffler with the cats hollowed out for the time being and it sound pretty good that way until i can get the cat shells out of there and just pipe in its replace
I ran with just a y-pipe after I swapped my 4.0 just to test drive it. It's so loud I couldn't even hit WOT and it sounds like ****. There is no reason to remove the cat and straight pipes on most engines sound like ass. Not to mention you kill your exhaust velocity and low end.
i have gutted cats but when i go to the local mud boggs i take them completely off it kinda sounds like a 302 with a timing issue at idle, ive had people ask me if i had a 302 at stop lights. but in florida we dond have emmissionns test so i dont know about that question.
I think the sound tends to vary some between engines, or people just have different ideas of what sounds good.
The 4.0 OHV V6's I've heard with the muffler & cats off have been insanely loud and very throaty, not as loud as a wide open V8, and not as much of the ground-shaking rumble, but still pretty wild.
Doesn't really matter much though, since they don't run well like that.