Magnaflow catback installed!! One Question...

[crew_dawg16]

This system sounds and looks great, very easy to install, took me 1.5 hours from on the lift to off the lift. Anyways, I got it all lined up and tightened down real well. Everything looks to have plenty of clearance, but when I hit a decent bump I hear a clunk like a component is hitting the car. Any suggestions as to what this could be??

 

[Screwed2V]

Once you crawl back under there you'll be able to see what it's hitting. My car did the same thing when it had Magnaflow stuff on it.

 

[crew_dawg16]

what was it that was hitting???

 

[DarkHorse02GT]

I had the same problem, it clunked when I went over speed bumps etc. and I got back under it and i hadnt tightened the tip down good enough and that little buit of flexibility it had caused it to hit the rear bumper. Tightebed down the allen screw and it was good to go.

 

[propellerhead]

My new Mac catback makes a clunk sound over speed bumps too. I hope it's something simple. I'm taking it back to the shop this weekend.

 

[Screwed2V]

what was it that was hitting???

The axle. I had a muffler shop that half assed it together so there was a lot of adjustments that needed to be made.

 

[btolenti]

my sway bar is hitting when my rear suspension compresses....

Anyone know a fix for this?????

Will an aftermarket sway bar work better?

 

[Skud]

my sway bar is hitting when my rear suspension compresses....

Anyone know a fix for this?????

Will an aftermarket sway bar work better?

I had the EXACT same problem with my magnaflow system.

If you push the driver side rear pipe all the way onto the muffler, then the hump that goes over the axel will rub on the sway bar. I just had to pull the rear pipe out of the muffler a little, then tighten it back up..

Riley

 

[crew_dawg16]

ok, thanks for the help guys. As soon as I get it back on the lift I will try to figure out what it is. At least I have an idea of what to look for.

 

[tjm73]

Mine had a clunk also. It wasn't the suspension for me. It was the drive shaft. I had to adjust the extension pipe on the passenger side. When I hit a big bump that let the rear axle drop a lot it would hit the extension pipe and the corner of the muffler. After the adjustment, no more clunk.

 

[CatmanJJ]

Mine clunks cause of the rods that hold the tips in place, tightening them down helps some but they are a little long, some people have cut the excess off and this supposedly helps. I'm just too lazy, I also have MRT tips sitting in my bedroom that should take care of the problem, just need to find some time to install them.

 

[decoy562]

Mine did that too, easy adjustment.