Thanks, im gonna go look cause thats what I was thinking, maybe a loose hangar or bolt.

 

my exhaust isnt welded, all clamped... only problem ive had was blowing a muffler off at 6 grand in 3rd gear(just under 100mph) that was interesting

 

my cat shields were rattling too before i switched to an offroad midpipe. I find it hard to believe that 2 thin pieces of metal that's not air tight to the cat is going to hold in any significant heat...

 

they're not meant to hold the air, they're meant to move it away from the underside of the car.

 

you made it sound like it helped the system operate at a higher temperature.

 

turn the car on and go underneath and look 2 c where the rattling is coming from

 

they are there for exactly the reason they are named, heat shields. if the underside of your car is a sloppy mess, and your running cats without shields, be prepared for a fire.

 

Idk man, the shields i had wouldnt prevent a fire, they were horrible. Only thing i could see it preventing a fire is if you parked on a huge pile of dead grass, then maybe it would stop it from catching fire.

 

i've personally seen it happen to a buddy of mine's prelude. we were driving the car to the new owners house when the underside of the car caught fire, from the heat shield being removed and an oily greasy mess on the car. we had to pull over and luckily i had a couple water bottles, we were able to get it out while the fire department woke up and got there.

 

Off topic. But why do you have the t-top straps?