mike, those are just resonators

 

there are two smaller pipes poking out that are open to atmosphere though -

 

for O2 sensors

 

No problem. Glad I was able to help. Knowing you, you'll probably have it in your hands within a month.
I wouldn't be so sure that his HFCs were defective. For one, with the cat there, there isn't much room for a flex pipe. Plus, none of my test pipes had it.

Isn't Megan Racing the only company with flex pipes in their test pipes anyway? I've had Megans before they put the flex pipes in and the reason for them doing that was because their fitment was **** to begin with (2nd worst after the eBay ones). A flex pipe is a bandaid fix for crappy fitment, imo.

Keep in mind that the OEM y-pipe has flex pipes already so there's no need for additional ones (not to mention the change in the pipe diameter and the flow disturbance inside the flex joints) and we also have exhaust hangers which allows for some movement.
Those are called Helmholtz resonators. They are tuned to particular resonant frequencies so that the waves from the resonator reduces or cancels out those frequencies, thereby changing the resulting sound. It also makes power through changes in pressure differences, iirc, but I don't know too much about the technicalities there to explain it properly.

 

My kinetix HFC's are getting a really bad rasp .....but seems to get better or go away once warmed up.

I hope mine aren't cracking !

 

your prob right, is it bad i am offering to work extra to get them now??

for your reading pleasure on the helmhotlz stuff
http://www.phys.unsw.edu.au/jw/Helmholtz.html

 

FFUUUUU!! I must either have the worst luck or I got someone stabbing my rear tires at a rate of 2 nails per week. I just found the 3rd staple-looking nail embedded into the sidewall. I only had these on for 5 months and still has half of its tread left -- wtf.


Anybody have a 285/35/18 R-S3 with 5-6/32" of tread left?

 

does anyone here have a pop rivet gun? when i put my splitter on, it had 3m tape where it wraps around the side of the bumper, i need to put something on each side to secure it.... tape did hold good on one side, or any other suggestion are appreciated

also i have about 6 really small hail dings that are finally getting on my last nerve, anyone have hook up on PDR person

 

ahh - didn't look like a bung hole..... good grief

 

I have read the document on this - my buddy bought the entire system and made me read it haha actually it was that dude that came over but didn't change his oil..........

 

Ditto on a PDR person. Also, is there someone around here that works out of their garage etc that does basic maintenance for the group or members, ie Oil Changes and such?

 

Yes I have one - PM me for details..

 

assuming you are talking pdr guy.....

 

thanks for that link Travis lol -

 

I'm thinking Jake was talking about a PDR guy. He hooked me up with him and the guy did great work for cheap.

Jake is also the guy to go to for work on the Z. What area are you in Lucky?

 

eric, where you been all day?

 

V3 of the ART pipes has a mounting tab also.

 

I'm in Frisco. Not sure if it's easier to just goto the dealer or if someone else here does this type of stuff.

 

yall are making it harder for me not to impulse buy those pipes!!!!

 

My PDR guy is legit...if you have alot of PDR that needs done - I do believe he can work with your insurance as well.. have to ask him though..


LUCKY - sent you a PM sir..