What did you do to your FX / QX70 today?

I got my gt spec strut brace put in today kk
the ride is so much better but really hadn't had the chance to steer or corner so far
but it even made my ride better i think or is it just the feel?

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here is a quick image of what i did two weeks ago led signal mirror cover!!!!


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Which took me about 4 hours to do lol!!!

---------- Post added at 12:33 PM ---------- Previous post was at 12:30 PM ----------

I got my gt spec strut brace put in today kk
the ride is so much better but really hadn't had the chance to steer or corner so far
but it even made my ride better i think or is it just the feel?

747b3c9b.jpg


7eb04a64.jpg

83a76ad3.jpg

here is a quick image of what i did two weeks ago led signal mirror cover!!!!


367f729c.jpg

70b4f2e7.jpg

Which took me about 4 hours to do lol!!!


Oh by the way i had to remove the bbrackets cuz it did not fit with the brace
are we supposed to remove the tower bracket or leave them there? or put them on top?
thx guys
 

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Adding a resonator will help some, but the rasp will still be there. I had a test pipe on my old car (aftermarket turbo) and w/ the straight through muffler, the noise was horrible. It idled nicely, but at any kind of throttle, the rasp was ridiculous. I added one 18" resonator and it got way better. The rasp was still there, but it was maybe 30% better, the overall noise level was just lower. Then I got another resonator and replaced the test pipe w/ it, that made things livable. Not great, and definitely not something I'd want to commute with every day, but it was tolerable for short distances. The resonator doesn't so much remove the rasp itself, it just quiets everything down so you don't notice it as much.


turbocad6 said:
I don't think it's the internals vibrating because rasp is loudest with test pipes. it sounds like something rattling but it's not. factory cats have a high cell count and much longer cell blocks and a higher build thickness of the substrate coats which also restricts the cells that much more, high flow cats are using less cell count and shorter cell blocks and much less precious metal wash coat film thickness to increase flow but filter the rasp less... I'm not too sure if adding a resonator to the mix would help...
Click to expand...
 
turbocad6 said:
I don't think it's the internals vibrating because rasp is loudest with test pipes. it sounds like something rattling but it's not. factory cats have a high cell count and much longer cell blocks and a higher build thickness of the substrate coats which also restricts the cells that much more, high flow cats are using less cell count and shorter cell blocks and much less precious metal wash coat film thickness to increase flow but filter the rasp less... I'm not too sure if adding a resonator to the mix would help...
Click to expand...

I have the largest resonator I can fit (the third in this system) installed right now. It helped a little with the rasp and a lot with the drone. Here's a pic:
a6fa00d2-51c4-e377.jpg
 
shadow191 said:
Adding a resonator will help some, but the rasp will still be there. I had a test pipe on my old car (aftermarket turbo) and w/ the straight through muffler, the noise was horrible. It idled nicely, but at any kind of throttle, the rasp was ridiculous. I added one 18" resonator and it got way better. The rasp was still there, but it was maybe 30% better, the overall noise level was just lower. Then I got another resonator and replaced the test pipe w/ it, that made things livable. Not great, and definitely not something I'd want to commute with every day, but it was tolerable for short distances. The resonator doesn't so much remove the rasp itself, it just quiets everything down so you don't notice it as much.
Click to expand...

Right. :top:
 
I was told it had something to do with the fact that it's a V6 (my old car was a VQ as well). Since it's 2 banks of 3 cylinders each, it will be raspy. A V8 has obviously 2 banks of 4 cylinder so it will be slightly smoother while an inline 6 is much smoother. Similar issue w/ the first Vipers, they had the side exit exhausts so each bank had their own separate exhaust. One of the reasons they went to the rear exit for a while (other than the heat issues of stepping over an exhaust pipe) was to improve the sound. To be honest, my car sounded worse than a 4 cylinder Honda which was slightly embarassing.

turbocad6 said:
so now I wonder, what actually produces the raspy sound? never had anything like this on old american v8's with no cats...
Click to expand...
 
angryfx said:
Oh by the way i had to remove the bbrackets cuz it did not fit with the brace
are we supposed to remove the tower bracket or leave them there? or put them on top?
thx guys
Click to expand...

With the Stillen, there was enough room to reinstall the tower brackets on top, but the GTSpec brackets are much thicker. You need to remove them and keep them somewhere should you decide to remove the STB.
 
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