Apex Exhaust...Final Answer?

Post by **Reklaw** » Tue Jul 30, 2002 4:25 pm

Hey guys, I'm buying an Apex exhaust and I need a final definitive answer. My plan is to go turbo over the next 18-24 months. Hopefully pushing 325-350 hp. Until then I'll be running NA. I've done the intake, and the header will come soon (I'll sell them when I'm done with them), not to mention the hi-flow cat.

So, do I buy the N1, Duel N1, or gSpec? (price is not an problem)

I've read that the Duel is more for NA cars (more restrictive). Is this true? I don't want to buy another exhaust when I build my KA24DET.

I've also heard that the N1 & gSpec hurt lowend on the NA car (piping too large).

And finally, I've heard that the Silencer helps performance when on the NA car (restricts the larger piping). Is this true as well?

I know most of the physics behind it all...large pipe, slow exhaust = badsmall pipe, slow exhaust = goodlarge pipe, fast exhaust = goodsmall pipe, fast exhaust = bad

but the two comments (duel being for NA and Silencer helping NA) threw me for a loop.

thanks guys!

Post by **FrEaK** » Tue Jul 30, 2002 4:25 pm

The Gt-Spec will make you loose low end because it has like 95mm piping, the high end of your powerband will increase tho. The N1 dual increase mid and high rage on NA cars, and the N1 increases it on the high end. For your specific application if you plan on having relatively high horse power or high boost Gt-Spec is a good choice. That way you wont have to upgrade as your car improves in HP. Dont worry too much about low end. You will more than make up for it in high end HP and chances are it prolly wont even change your low end numbers.

Final = Apex'i GT-Spec Exhaust System

:squint

Post by **FrEaK** » Tue Jul 30, 2002 4:25 pm

I forgot to mention.. Untill you get your tubo you may have to deal with a slight power loss.

:squint

Post by **Reklaw** » Tue Jul 30, 2002 4:25 pm

I wanted to go that route, but I needed someone to give me a kick in the a** to get started. I'll just have to suffer the slight power loss for a while. Maybe it will get annoying enough that I start the turbo project early

Thanks FrEak!

Post by **FrEaK** » Tue Jul 30, 2002 4:25 pm

NP Anytime :squint

Post by **Bbill528** » Tue Jul 30, 2002 4:25 pm

What's your car look like? Ilive in charlotte, i might have seen it.

Post by **I H8 UR DSM** » Tue Jul 30, 2002 4:25 pm

apexi GT spec.hks titaniumbuddy clubbee R

Post by **JinNjuicE** » Tue Jul 30, 2002 4:25 pm

are there aftermarket downpipes that would fit the GT Spec exhaust? What about exhaust manifolds?

Post by **Daunttless** » Tue Jul 30, 2002 4:25 pm

Any normal downpipe should line up with the GT spec so long as its made for the 240SX....

Post by **JinNjuicE** » Tue Jul 30, 2002 4:25 pm

doesnt GT Spec use 3.74" piping? I thought even aftermarket downpipes were 3". Wouldn't you need a connector that goes from 3" to 3.74"? I was trying to ask if there were aftermarket downpipes and exhaust manifolds that are bigger than 3".

Post by **FrEaK** » Tue Jul 30, 2002 4:25 pm

I dunno... but im sure that when APEx sells the system they have one already fabricated..

Post by **Reklaw** » Tue Jul 30, 2002 4:25 pm

Hey Bbill528, I live on the north side. My car is the stock looking 1990 maroon hatchback. Oh, wait a minute, they all look like that

Seriously, I just added my first mod...an Injen Intake. How about you?

Post by **Bbill528** » Tue Jul 30, 2002 4:25 pm

I live in South charlotte, I have yet to purchase my car, hopefully an s14.

Post by **SrSLeePeR** » Tue Jul 30, 2002 4:25 pm

Post by **I H8 UR DSM** » Tue Jul 30, 2002 4:25 pm

JinNjuicE wrote:doesnt GT Spec use 3.74" piping? I thought even aftermarket downpipes were 3". Wouldn't you need a connector that goes from 3" to 3.74"? I was trying to ask if there were aftermarket downpipes and exhaust manifolds that are bigger than 3".

most likely you would just get a larger downpipe custom made...they do however make larger downpipes...Your downpipe does not directly go to your exhaust...downpipe to cat (or testpipe), then to exhaust...

Apex Exhaust...Final Answer?

Apex Exhaust...Final Answer?

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