Violator187

Me and my friend installed resonators and then aligned the axlebacks but its rattling really bad and we ajusted the pipes alot to make shure we had the clearance and it looks ok but it even rattles at idle sometimes and we can not find where its coming from.. any opinions?

Nuke

There have been numerous threads about exhaust related rattles. Some of the culprits are clamps (torque them down a bit more) and hanger-to-frame-contact.

onederful100

did you clamp or weld in the resonators?
what kind of resonators? new?
where's the rattle coming from, midpipe, axle back, back of car, middle?
what kind of clamps?

Violator187

Brand new Dynomax 12" resonators welded in by my friend that welds for a living and the sound is hard to tell where its coming from because it does it when i'm driving to work and then stop sometimes.... and sometimes it does it when i downshift a little

Violator187

and also new stainless steel clamps from summit on the axlebacks

Violator187

Also anyone have a good thread i can look at that would help me? i searched around but no luck....

onederful100

have you checked the midpipe clamp, sometimes that can come loose.
does it rattle when you hit a bump, or is it more w/ the rev of the engine?

maybe a faulty resonator? i just put my old boomtubes on my dads mustang and has a rattle over bumps and worse when i rev it over the bump. turns out the baffles inside are coming loose. i tried moving the exhaust around but couldnt hear anything until i hit the boomtubes w/ my hand and heard the rattle from inside on both the boomtubes. have you tried moving the exhaust to see if it hits anything?

Violator187

Yea i've tried moving everything pretty much... it seems its only the drivers side but i will get back to you guys tomorrow and see how it goes tonight..

Violator187

yea i checked everything is tight as can be and the resonators are new and i checked them and they were perfect

Violator187

for whoever asked for them