jmmorgan82

when my car is cold, there's a very loud rattling sound coming from directly under me. I was thinking maybe it's the heat shield on one of my cats from hitting speed bumps, but when my car gets to normal operating temp, the sound stops. Any suggestions?

Silver99GT

I had the exact same thing with the stock cat set up. It turned out to be a broken piece inside the cat not the sheild.

Fizzics Boy

theres an easy fix for that. ditch the cats and go O/R

demon_head

good call

jmmorgan82

yea yea. i dont like my car being that damn loud all the time

03fireredstang

why??? thats my favorite thing about my car...i had the catted prochamber but it was too dang quiet for me so i switched out to the o/r legs and i love it...its not too damn loud until u give it hell

AJ06GT

Hell, my car isn't loud enough anymore.

03fireredstang

agread..thats why im looking into longtubes lol

jmmorgan82

So, i dont want to buy a new midpipe. Should I just find some hi-flo cats somewhere and have those put on, or have a muffler shop weld on some straight-thru piping?

97targa

If you get rid of your cats, I'll takem! I do custom exhaust installs and I could use the shells. A shop will not straight pipe them nor hollow them out. Unless you know them they will do everything by the book.