need help buying an Exhaust

[red240sx]

Hi there I’m a very very proud owner of a 95 240sx and I’ve had it for about 6 months now and I’ve got the car to the point where I’m ready to start building it up. Right not I’m looking at buying a cat-back exhaust and an intake for it could you please give me some help…….i’m looking for a good power range but also a great sound, I do like loud exhausts.

[orange_guy182]

From what I have heard the 5zigen fireball is a good NA exhaust.

[Stebo]

i have a 93 240sx.... i was wondering about exhaust also...but iam thinking about the apexi ni dual..cause it looks really good..does anybody have any suggestions.......I to like a loud exhaust.

[nnkfws333]

man this question always get asked alot but I think it depends on what type of setup your going. If your gonna go turbo than I would probably get an N1 which I think looks great and works great but for me I don't plan on going turbo, so I went with the HKS Hiper. It looks almost like the N1 and it isn't very loud. Plus it kept a lot of my low end power which is what the KA engine is great for. Especially the torque

[Zebrahead]

man this question always get asked alot but I think it depends on what type of setup your going. If your gonna go turbo than I would probably get an N1 which I think looks great and works great but for me I don't plan on going turbo, so I went with the HKS Hiper. It looks almost like the N1 and it isn't very loud. Plus it kept a lot of my low end power which is what the KA engine is great for. Especially the torque

Agreed. Bought that one also. Very good quality exhaust. It's quiet when you start it up, and once it warms up its loud, but not annoyingly loud. Very low and smooth. Good power gains throughout the powerband. I'd recommend it to anyone.

Nick.

[PapaSmurf2k3]

has anyone run straight pipe from the cat back? how does it sound? deep and loud? no big goofy tip just pipe. thanks.

[PapaSmurf2k3]

oh yeah and are there any big dangers of doing this? (im aware of the lack of back pressure, but i was wondering if anyone has cooked their valves or anything due to this).

[george]

go to Jspec.com they have an excellant choice of exhausts and great prices

[95_240sx]

I got an Apexi N1 Single on my car, it was easy to install, sounds great, and let me pick up another .3 in the 1320. You can get it from Enjuku Racing pretty decently priced.

Rick

[9ball]

I'm not saying this is always the case, but usually your best bet is to go to your local exhaust shop and have them bend you up an exhaust. There are some good aftermarket exhausts out there but they tend to be grossly overpriced for what they actually do. Some people think an exhaust from a certain company can get them some magical power gain but depending on the car the power gain from a high priced exhaust is usually negligable. Any decent exhaust shop can make an exhaust with comparable sound and power gains to anything from Apex or HKS. A good exhaust guy will be able to determine what diameter will work the best for your particular setup.

[b240]

I got the apex'i N1. Its really nice and was an easy install. I posted a thread about it in the General section. Its loud , but not annoyingly loud. All in All im happy.

[Dano]

i have n1 dual, its surprisingly quiet, even with intake and gutted cat, must be those stock headers.

-Dan

[harryhood]

I just ordered a HKS Dragger II. everything seems to be on backorder.

Also, I plan on going turbo in the future so I don't know if this really applies

[perpetual gyro]

has anyone run straight pipe from the cat back? how does it sound? deep and loud? no big goofy tip just pipe. thanks.

uh, it will be EXTREMELY loud and raspy....VERY RICEY. DON"T DO IT.

[perpetual gyro]

oh right, the question...good advice given above. if you go turbo, get the Apexi N1. if not, put 2.5" pipes and whatever muffler you like. For the intake, go AEM if you can afford it. If cash flow is tight, go to ebay.

10-4

[C-Kwik]

I'm not saying this is always the case, but usually your best bet is to go to your local exhaust shop and have them bend you up an exhaust. There are some good aftermarket exhausts out there but they tend to be grossly overpriced for what they actually do. Some people think an exhaust from a certain company can get them some magical power gain but depending on the car the power gain from a high priced exhaust is usually negligable. Any decent exhaust shop can make an exhaust with comparable sound and power gains to anything from Apex or HKS. A good exhaust guy will be able to determine what diameter will work the best for your particular setup.

I agree, but I wouldn't have a shop bend me an exhaust. I'd have them put together mandrel bends. Crunch bends impede flow. Impeded flow causes backpressure. Backpressure is bad. I'd stick to aluminized or stainless piping and use only a stainless muffler with straight through design. So I wouldn't just go to a local exhaust shop, but one that can do all this for me. Then I could say the exhaust would be comparable to a premade aftermarket unit.

[C-Kwik]

oh yeah and are there any big dangers of doing this? (im aware of the lack of back pressure, but i was wondering if anyone has cooked their valves or anything due to this).

I just copied part of my post from another thread I just responded to:

Backpressure, or the lack of has no direct impact on low-end performance. It's the lack of exhaust gas velocity that kills low-end. Pick too large a pipe and the gases exiting the motor will slow down. This affects the scavenging effects of the header nd you lose low-end. As you go to higher RPM's, you get more airflow and the exhaust velocity gets higher and the scavenging effects come back. While in theory, it's possible to acheive good scavenging with zero backpressure, in the rear world, it is hard because engines work throughout a range of airflow and exhaust systems tend to have bends. 1-2 psi of backpressure is acceptable. The Apex'i N1 exhaust was tested by SCC and showed no loss of power in the low-end, even with it's rather large piping.

There should be no mechanical problems incurred by running a straight pipe.

[perpetual gyro]

yes you're right C-Kwik..but I just want to make note that most muffler shops have mandrel benders..the crush bending practice is getting eliminated from what I see.

[C-Kwik]

They do? I'd like to see even one. Mandrel benders are extremely expensive and for the most part have been limited to exhaust system manufacturers.

[perpetual gyro]

yeah the shops that i went to had one..seems like the norm to me.

[GrubyFngaz]

The newb, 9-ball had the best suggestion. Go get one done at a muffler shop. I have the HKS Hiper and Injen Intake and it sounds good, but it was expensive. I had all these problems with my exahuast and had to take it somewhere to get it installed and the guy told me he could have built me one just like it for half the price. I would get and INJEN or AEM Intake, they're both good and then custom exhaust.Josh

[Lsnaple]

im getting my 5zigen muffler put on with 2.25" pipes tomorrow, hopefully. i have to get an emission test done to get a license plate and there is a testing place next to the exhaust shop im getting it done at.

supposedly ill have a deep tone and a little more power.