Currently I have an HKS HiPower exhaust on my car and I've been thinking about getting a test pipe.

What are the pros and cons to a test pipe? What sort of gains can I expect over having just the exhaust? Does a test pipe technically make the car not street legal? What legal implications are involved? Also, everyone says that a test pipe makes the car sound even better - how so?

Thanks all!

 

i think a test pipe will most likely get rid of any drone. i have heard an ap2 w/hks and testpipe. i wasnt right next to it...he was probably a few blocks away, but oh my god, did it sound amazing.

 

Thanks. So no drone? Does it make the exhaust note louder, more exotic?

So will the car pass a smog check with the test pipe on?

 

it wont pass smog
u'll have to change back to ur stock cat for smog check

also be aware of the fines of running a tp in cali

 

Is the HKS exhaust even legal in Cali?

 

I believe so.

 

How bad is the smell w/ the TP?
Is it like the rotten egg smell you get w/ a bad CAT?
cuz I've ran thru a puddle of water with my old RSX-S, the water messed up the catalytic converter and I couldn't bear that nasty smell.

Dan

 

ya rotten eggs

you'll notice it especially in the s2000 with the top down, naturally

 

Ah.. Okay.
Thanks for the info.

Dan

 

To me it smells more like gasoline.