Chevy & GMC Vans

I've had a magnaflow exhaust before, not on the 4.3L but it sounded very good. I think you should be happy with it. By the way, what will you be doing with the old Gibson cat-back?

I've got a flowmaster 40 on my '89. It drones pretty bad.
I had a magnaflow on one of my jeeps a while back..droned about the same as the flowmaster.
I'm thinking now about ditching the flowmaster and stuffing the biggest stock muffler under there I can fit. The noise is annoying me now. My age must be catching up with me.

Okay, I finally got the Magnaflow muffler welded up last Friday. Good lord... It is a beast for sure. Sounds great at idle, and cruising. Drones a little to much at cruising, and it is just obnoxious at W.O.T. If it weren't for the W.O.T. I would probably keep the muffler. It just sounds way to ricey. I am actually embarrased to floor it, it's like a small prop plane taking off. So the search continues. I will probably put the Gibson muffler back on, and get the magnaflow high flow cat on and see if that gives the Gibson catback a deeper tone.

My flowmaster doesn't sound ricey at all, but man it drones. I can tell when I'm right at 55 mph, it rattles my fillings.
I hear ya brotha...unless I'm doing 55. If I could kill the drone inside and retain the meaty sound outside I'd be a happy camper. I love it when I get up next to another truck with a butch exhaust on the highway. The harmonics created are like a symphony to me. And..then the guy in the ford Excuse gets all offended that I'm stealing his thunder in a rusty old astro and skirts off.

I dont know about the high flow cat but I had a Moroso sprial flow 3"in an out muffler on my 93 and it sounded great. Now keep in mind it has stock exhaust all the way back to muffler and just a 3" tail pipe. Another thing to keep in mind is mufflar placement will also affect sound.The shorter your tail pipe the deeper the rumble I have noticed. So before you throw away the muffler put on a test pipe an play with where you want the mufflar for sound.

I know what you mean by "dumping" the exhaust. But I just installed my rear bumper, and it has provisions for the exhaust to exit there. I am not completly bummed since it was only $70 and I got to spend a few hours with my welder piecing all the exhaust together and really seeing what I could do. But this Saturday I will weld back in the Gibson muffler, and bend the rest of the exhaust to exit out the rear. Then maybe in a week or two get the Cat on there.

I am tempted to try a Flowmaster delta 50 on though... but kind of pricey.

wanna sell any of your mufflers that you are not using? I'm gonna start doing a real exhaust on my van some time soon and the thrush pos i have on there just isn't gonna cut it.