70 MACH I

I figured I was done modding for awhile, but I keep getting this annoying rattle from the cat shields on my '04 GT's stock cat pipe. Even worse now with the headers, more heat down the pipe, the shields rattle even more. Ford's solution is hose clamps around the cats, more rattles. DOH! I want to retain cats, improved flow is a bonus, and yes, NO rattles! Now the question, Will I retain the old school deep muscle car tone (which I desire) with the UPR catted X-pipe, or should I go with a hi-flow H pipe?. I like flows, they are staying on the system. UPR seems the most reasonable for a catted stainless X-pipe, this is my last purchase as I plan on starting to **** money big time on my '70 Mach I. Thanks ahead for your Input.

The hooker looked down at me as a smug grin drew across her face, she asked: "Who do you think you are going to please with that, " she queried. I replied, "ME"!

CobraSnake

is it a heat shield???? Is that what your talking about.

krm486

Go with the X pipe. I have been very pleased with mine. (off road X w/o cats)

DrBob

I have the UPR O/R X and could not be happier. A lot of people, I believe, dismiss it because of the low price. It is a very nice piece!

blackbetty01

Thats what I was thinking, just take it off it is rattling. I don't have one and I can't tell.

70 MACH I

Serious, no B/S, could I remove shields on all 4 cats with no heat issues. Would I feel a noticeable difference with hi-flow cats and X. The headers made an immediate difference in power, noise volume, and tone. The stock cats don't seem to be holding it back that much, because I did gain alot with the headers, so it's going through them with decent flow and heat.

This morning, sitting at a stoplight, my stang was the only vehicle with visible exhaust mist (I had already driven 20 miles), I know my exhaust is hot and has decent flow.
John