About HKS HI POWER exhaust
#1
Join Date: Jul 2007
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About HKS HI POWER exhaust
So i just bought one from THMotorsports, and i have a few questions for you guys.
1) it comes with an H pipe, what is the difference between H pipes, Y pipes and test pipes?
2) Would these exhaust pass the em test?
3) anyone know shops that would install these with a good price in the 951/909 area?
thx in advance.
1) it comes with an H pipe, what is the difference between H pipes, Y pipes and test pipes?
2) Would these exhaust pass the em test?
3) anyone know shops that would install these with a good price in the 951/909 area?
thx in advance.
#2
Originally Posted by Duritskoy
So i just bought one from THMotorsports, and i have a few questions for you guys.
1) it comes with an H pipe, what is the difference between H pipes, Y pipes and test pipes?
2) Would these exhaust pass the em test?
3) anyone know shops that would install these with a good price in the 951/909 area?
thx in advance.
1) it comes with an H pipe, what is the difference between H pipes, Y pipes and test pipes?
2) Would these exhaust pass the em test?
3) anyone know shops that would install these with a good price in the 951/909 area?
thx in advance.
#3
#4
Originally Posted by CruisnGcoupe
There is no y pipe with HKS it does use an H pipe. The reason I think is it helps reduce the drone, keeps the pipes from bang and flexing, I am sure there is other reasons also
![](http://i6.photobucket.com/albums/y211/EvolutionGSR/HKS.jpg)
#5
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Originally Posted by EvolutionGSR
Y pipe is the section after your cats. H pipes are the section after the Y pipe and before the mufflers. You'll get both with the HKS hi power. Test pipes are what you replace your cats with if you want to get a bit more power, but are not legal for street use. You should be able to pass emissions with just an HKS hi power.
Ahh now i get it haha sorry such a newb, first time fixing up a car. thx alot for the feedback guys.
#6
Originally Posted by EvolutionGSR
Y pipe is the section after your cats. H pipes are the section after the Y pipe and before the mufflers. You'll get both with the HKS hi power. Test pipes are what you replace your cats with if you want to get a bit more power, but are not legal for street use. You should be able to pass emissions with just an HKS hi power.
#7
Originally Posted by CruisnGcoupe
There is no y pipe with HKS it does use an H pipe. The reason I think is it helps reduce the drone, keeps the pipes from bang and flexing, I am sure there is other reasons also
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#8
Originally Posted by Duritskoy
So i just bought one from THMotorsports, and i have a few questions for you guys.
1) it comes with an H pipe, what is the difference between H pipes, Y pipes and test pipes?
2) Would these exhaust pass the em test?
3) anyone know shops that would install these with a good price in the 951/909 area?
thx in advance.
1) it comes with an H pipe, what is the difference between H pipes, Y pipes and test pipes?
2) Would these exhaust pass the em test?
3) anyone know shops that would install these with a good price in the 951/909 area?
thx in advance.
![Icon17](https://g35driver.com/forums/images/smilies/icon17.gif)
Yes
Any basic shop can do the install for you
#9
Y-pipe: cheap to build, compact, does the job
H-piple: better flow, "H" crossover reduces drone
X-pipe: "X" crossover increases exhaust velocity(exhaust scavenging), better flow w/o losing back-pressure needed for low-end hp/tq
straight though: highest flow, but loudest set up, favors high-end power
H-piple: better flow, "H" crossover reduces drone
X-pipe: "X" crossover increases exhaust velocity(exhaust scavenging), better flow w/o losing back-pressure needed for low-end hp/tq
straight though: highest flow, but loudest set up, favors high-end power
#10
Originally Posted by usmcmark
NOPE!!! the y-pipe is after the cats BUT you can replace it w/an h-pipe or x-pipe. the section after the y-pipe and before the muffler is the mid-pipe. h-pipe's come down from the headers and have a crossover section, like the bar across an "H" ...get it???
![Icon30](https://g35driver.com/forums/images/smilies/icon30.gif)
#12
Originally Posted by usmcmark
^^^yeah, duh... geez, i didn't think i hadda explain that in-depth.
-H-pipe's & X-pipe's are for dual pipping set-ups
-Straight-through can be single(well after the y-pipe) or dual
-H-pipe's & X-pipe's are for dual pipping set-ups
-Straight-through can be single(well after the y-pipe) or dual
![Stick Out Tongue](https://g35driver.com/forums/images/smilies/tongue.gif)
I just don't want peeps going out tomorrow buying h/x pipes for their single exhausts. LOL
#13
Originally Posted by usmcmark
NOPE!!! the y-pipe is after the cats BUT you can replace it w/an h-pipe or x-pipe. the section after the y-pipe and before the muffler is the mid-pipe. h-pipe's come down from the headers and have a crossover section, like the bar across an "H" ...get it???
Well we learn something new everyday dont we.
![Big Grin](https://g35driver.com/forums/images/smilies/biggrin.gif)
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