I did a search on it but nothing helped my question.
anyone running just straight pipes and headers how loud is it? and did it make a big difference in hp
im thinking of making my own mabey......

 

Unless you want your ears to bleed when you drive... i dont see why you shouldnt do it. I run a header to presilencer the straight pipes muffler.

 

My friend ran straight pipes on his NA FC. For me, I think it is ridiculously too loud. Especially after 4K RPM's!

 

there isnt a poiint... throw some ebay n1 replicas on there for 55 a piece and it will sound nice.

 

straight pipes will bring huge power gains on an na fc if you have the fuel to support it....i am doing it on my streetported 89 base and i know it will be loud...but i dont care! plus getting custom bent pipes in cheap as hell.

 

That must be incredibly loud. I think accompanying mods should be aircraft grade double air insulated glass and insulation.

 

You don't need fuel upgrades on an N/a unless your doing a bridge port or peripheral port of some kind. Nick's car still runds rich as hell and he has/had a large ITO street port and True Duals.

 

I don't think your going to be able to drive it on the street with straight pipes. cops will be on you like flies on ****. Not only would they give you tickets for no emmissions but for just being tooo damn loud. I mean I always hear some people say they get tickets with full exhausts including two mufflers and a silencer. You will not even be able to talk in the car man. spend a little extra for some mufflers.

 

Damn, and he doesn't even live in the south. I wouldn't have expected that from someone from the Union.

 

the union?

sorry man you misunderstood i am gonna put some mufflers on cause i know how loud it will be!
i have a streetport and i figure the extra fuel wont hurt...my injectors are hitting 88% duty cycle at times (aftermarket ECU)

 

so what did you do for your auxilary ports? electronic actuation?

 

So, would the stock manifold to a straight pipe to a muffler be bearable?

 

yeah i know a guy that has done that but i think that he should get headers for his car to get the full potential out of his N/A

 

If you enjoy your ability to hear things no. Otherwise go right ahead.

 

I am running near straight, took out the Cats and everything, but I don't recomend staight, I tried it and it is louder than a harley, the pick-up is awesome no lag at the stop and the chicks dig it but it is just a ticket waiting to happen.

 

after i ran off track at black hawk farms raceway i bottomed out on some dirt and pulled off an exhasust hanger and poped open one of the exhaust connectons. And i must say, it was pretty loud for such a small crack. its funny how many people tired to race me when i went to my friends house to fix it, a loud car with race/class numbers on it really brings out the racer in everyone!
it was loud enough with just a crack, i can not imagine how loud it must be with just an open header.

 

I got a single straight 3" from the turbo to the 3" free flow 3A racing muffler with 4" outlet. LOUD AS HELL!!!! but nothing that my stereo can't fix... LOL

 

i put in my new JDM tranny the other day and had to cut my exhaust off. i started it up.... and it put a smile on my face :-) hahaha. But anways i have a custom 2.5", gutted cat, no silencers, and factory mufflers, and its louder than stock but not bad at all. just turn the radio up that much more.
Josh

 

All this talk of straight pipes...have you ever seriously heard a rotary engine with straight pipes before??? Trust me, you WON'T like it for more than 5 minutes. It'll sound cool when you first put it on, but it'll very quickly loose the cool factor when you try to drive the car (yes it will be stoopid fast, but that's not everything), not to mention when you wanna think or go by a cop, etc.

It's just not a smart thing...take the small hit that you get with some pre silencers or at least something in there.

 

LOL. I do like the way an open header rotary sounds though. It sounds like a gatling gun on crack!

 

But if you're running straight pipes without a Cat, wouldn't you lose power?

 

You will loose power from your aucilary ports not working on S4 cars. You would loose low end too since free flowing exhausts seem to do that. Ofcoarse you gain the mid-top end. Oh and bleeding ears. :-/

I would not rin straight pipes on the street. maybe on a track or to drag race.

 

hmmm...i like my straight pipe t2...sounds awesome...3inch straight back to 3inch n1...considering also i do have a 3inch resonator also...makes it sound deeper/mellower...

 

yes...to go along with this...na cars must have a certain amount of back pressure...running straight pipe and having larged sized tubing/exhaust will not necessarily get you power...an exhaust pressure creates a vacuum...and this vacuum helps scavenge the exhaust...effective exhaust scavenging is the way to get power...when you run straight pipe with large tubing, you lose this vacuum in your exhaust, and the exhaust pressure slows down...i wouldnt go more then prob 2 1/4 inch tubing for na....you can prob push 2.5...but prob wouldnt make a significant gain....

 

i just blew my motor this week running straight pipes..overboosting the stock turbo over 12 psi