test pipe or high flow cat?
#3
New User
Join Date: Mar 2001
Location: Wayland, MI, US
Posts: 2,462
Likes: 0
Received 0 Likes
on
0 Posts
Re: test pipe or high flow cat? (p1ccoloz)
If you already have a header & exhaust then this may make sense. You'll probably pick up a few ponies. Test pipes are better, but illegal on the street, lead to CELs, and stink. Your call.
#4
Re: test pipe or high flow cat? (TimoneX)
yea my engine mods are, i/h/e/cam gears, yea so whats the down sides to the test pipe? Any idea where i could get a good deal on one or on a high flow?Thanks
#5
Honda-Tech Member
Re: test pipe or high flow cat? (p1ccoloz)
test pipes hardly flow any better than a quality high flow cat.
High flow cats also don't smell, don't trip a cel, and don't pollute. Go for a highflow cat, the difference is pretty minimal.
High flow cats also don't smell, don't trip a cel, and don't pollute. Go for a highflow cat, the difference is pretty minimal.
#6
Honda-Tech Member
Join Date: Sep 2002
Location: ATL, GA
Posts: 1,192
Likes: 0
Received 0 Likes
on
0 Posts
Re: test pipe or high flow cat? (p1ccoloz)
yea my engine mods are, i/h/e/cam gears, yea so whats the down sides to the test pipe? Any idea where i could get a good deal on one or on a high flow?Thanks
ok. down sides of test pipe is that well its illegal and some state if you get caught fine is very high. you will get few more hps from it then cat but i dont think it is worth it if your car is daily driving.
Trending Topics
#11
Honda-Tech Member
Re: test pipe or high flow cat? (p1ccoloz)
so the gains are worth the cost? anyone have any dyno proof of the power improvment? if so how many around 2-3hp or so?
I will try and see if I can dig it up.
#12
Re: test pipe or high flow cat? (StyleTEG)
really? humm anyone know anything about the obx cat? i mean 50 bucks is a nice price. So with even the best of high flows whats the dyno'd improvement you've seen?
#13
Honda-Tech Member
Re: test pipe or high flow cat? (p1ccoloz)
really? humm anyone know anything about the obx cat? i mean 50 bucks is a nice price. So with even the best of high flows whats the dyno'd improvement you've seen?
A highflow cat is an essential part of an exhaust system, and you are losing performance if you stick with stock.
Beyond the diameter difference (1.8 ID instead of 2.25" or bigger) the flow is terrible.
Stock NSX 242.1 cfm
Stock Type R 223.6 cfm
Stock Integra 218.3 cfm
Car Sound 2.25" 342.7 cfm
Test Pipe 2.25" 407.1 cfm
Stock Type R 223.6 cfm
Stock Integra 218.3 cfm
Car Sound 2.25" 342.7 cfm
Test Pipe 2.25" 407.1 cfm
Testpipe in red, carsound cat in blue.
Huge difference eh?
#14
Member
Join Date: Aug 2001
Location: Starbucks Most, Likely
Posts: 5,664
Likes: 0
Received 0 Likes
on
0 Posts
Re: test pipe or high flow cat? (StyleTEG)
carsound cat makes more tq
but in general, you can just see that the do the same thing powerwise, legally with the cat, illegally with the TP. I had a test pipe and it gave me a guiltry conscience too...eek.
but in general, you can just see that the do the same thing powerwise, legally with the cat, illegally with the TP. I had a test pipe and it gave me a guiltry conscience too...eek.
#15
Re: test pipe or high flow cat? (neo1z)
HIGH FLOW CAT ON THE STREETS
please don't contribute to air pollution.. what if one day we all got lung cancer from the air we breathe? Then would you still get a testpipe?
please don't contribute to air pollution.. what if one day we all got lung cancer from the air we breathe? Then would you still get a testpipe?
#18
Join Date: Oct 2002
Location: Saint Petersburg,, FL, USA
Posts: 1,642
Likes: 0
Received 0 Likes
on
0 Posts
Re: test pipe or high flow cat? (p1ccoloz)
I personally hollowed out my cat, and I must say I'm planning on replacing it w/a high flow cat. If you are ever behind a car w/o a Cat you will know it. The smell is just unmistakable.
#19
Honda-Tech Member
Re: test pipe or high flow cat? (94TealGSR)
I personally hollowed out my cat, and I must say I'm planning on replacing it w/a high flow cat. If you are ever behind a car w/o a Cat you will know it. The smell is just unmistakable.
For example, if you have I/H/E, and a hollow cat.
Chances are you go from a 2" collector, to a 1.8" inlet on the cat, to a 2.0" outlet on the cat, to a 2.25" or bigger exhaust. All that stepping down/up is going to kill flow quality and reduce exhaust velocity and performance.
#21
New User
Join Date: Mar 2001
Location: Wayland, MI, US
Posts: 2,462
Likes: 0
Received 0 Likes
on
0 Posts
Re: test pipe or high flow cat? (p1ccoloz)
The only comment I'd have is that typically OBX parts are of very low quality. Who knows maybe they make awsome cats.
Thread
Thread Starter
Forum
Replies
Last Post
DCSportEJ1Civic
Honda Civic / Del Sol (1992 - 2000)
26
07-16-2007 12:44 PM