Was wondering how many people are running the test pipe and what the fine is if used on public roadways. I would also like to know if there is a significant difference in whp.

 

supposedly a lot of people dont think the Test pipe gains are huge.... which in turn for some makes it not worth it.... they would rather run a high flow cat.... from things i have seen, a test pipe of course makes power, but not much more than a good HFC.... i run a TP because i like how much better the car sounds.


as for the fine... out here in socal... its pretty deng big.... and an automatic ticket to seethe State Ref

 

I like Buschur V band all you need is jack stands and a wrench and you can change out the test pipe to a HFC whenever you want. Its about 300 dollars more then a TB with a test pipe though.

 

i have a Perrien HFC and a test pipe. i had dyno'ed the car and found that with the test pipe my midrange was bigger than with my HFC. topend didnt really change either.

heres my graph
https://www.evolutionm.net/forums/sh...3&postcount=33

i usually run the HFC for DD and the testpipe for track

 

if im in a state that requires a cat,than i will get one

untill then...i rock my TestPipe

 

I run a test pipe on the track and a high flow cat on the street. It is an easy bolt on/off.

The car is faster with the test pipe, but it smells like hell and sucks to be behind my car when I run the test pipe.

Driving with the test pipe all the time is not worth the potential fines IMHO for the minimal gains for the street.

 

test pipe for me....luckily no emissions where i live....

 

Test pipe. Why run a cat when some piece of white trash is just gonna steal it while I am in the pub? (Seriously, this is a big deal here at the moment!)

 

test pipe FTW

 

test pipe has a better sound. jus put mine in yesterday and i love it

 

livin' loud and proud

 

I think you all know where I stand on the subject. Is a test pipe really worth the minimal hp gains and smell over a 100 cell cat? Personally, I don't think so



So, the easy answer is get a MIL.SPEC 100 cell cat and get a lot of hp without a lot of stink

 

Get it tuned so it's not running so rich, end of story.

FWIW I'm running a HFC as of now but soon to be a TP.

 

runnin the ETS Dp back with no cat

 

Oh, man, I love the smell of gas. TP FTW! Wow......look at that pink elephant......