hey wassup guys i have a 91DA with a b18b (94ls) motor in it and i was wondering what would i expect from gettin a straight pipe put onto my car with stock exhaust?

and if i were going to do this what size piping should i get and would i be able to keep my cat on?

 

well first of all, if you got a straight pipe it would replace your catalytic converter.
if you are going to be N/A i recommend piping of 2.25 or 2.5
you will have minimal gains if you have just basic intake/header/exhaust but it does free up your exhaust from restrictions.

i'm selling a test pipe in my sig if you are interested.

 

oh alright coo ill see wassup but yea somone told me that if i just go straight pipe i can still keep the cat? ne other info on a straight pipe?

 

i wouldnt reccomend it, the 1-2 whp isnt worth a $3,000 ticket. besides if you really want to do it then just hollow out your existing one

 

hMmMm....i dont know what to think now haha i mean i still want it but maybe ill just buy a full cat back but other than that ne one else have ne input on a straight pipe?

 

well since u live in cali, i'd be careful.
i got the test pipe i'm selling custom made w/ flanges so i used it when i hit the tracks or do dyno tuning.
easy bolt on and off when i need to

 

well i guess straight pipe is no go for me lol ill just get a full cat back than thanks for the help though

 

Unless you were boosted, or something along the lines of a lot more power then stock,
there is No reason to even run a straigtpipe in place of the cat,
It will only become louder, and you won't feel any difference in power.

 

I think what this guy is asking is:

"can I run a stock cat (or high flow unit) with a custom cat-back straight pipe design?"

In either case, using a gutted cat, test pipe, etc is a waste of time, and REALLY stupid for you guys in CA. As for a custom cat-back sans any muffler, or resonators....... also a waste of time and money. If you want to improve your exhaust flow and still be CA legal, you will want to use off-the-shelf pieces (header, high flow converter, cat-back exhaust) with CARB certifications.

 

Strait pipes would sound like poo on a teg

It would sound like a weed wacker on NOS

But yeah.. you can do it...

 

[QUOTE=s0nicstr1fe]Strait pipes would sound like poo on a teg

It would sound like a weed wacker on NOS
[\QUOTE]
x2

 

well yea i figured that straight pipe wont do much but make my car sound ricey lol thanks for the input guys