Rb26 Aftermarket Exhaust

[N1GTR]

haha, yes same, i was expecting a longer list of mods

Pretty much as you said Steve.

Although i would just get 3.5" from the outset personally. Once day you might decide to get slightly bigger turbos etc and a tad larger exhaust could offer benefits.

Certainly no need for a 4" unless you are planning on a 400rwkw+ sorta build.

Also some merge's actually go to 3.5", i know the trust ones do... so certainly not all front pipes end up 3" @ the merge.

The trust ones do? The trust ones I had were 80mm, so I guess there must be a couple of different sets? They were all sorts of old though. I don't know the merge size on their new stuff

agreed on the 3.5" now but only if definatly going bigtime powerwise in the future

Oh and something else Ash and I will agree on, got some money you just have to spend? Call RacePace for a custom exhaust. No one has done more RB development in Australia than them

[R31Nismoid]

Actually i tell a lie... i just remembered my trust pipes were modified as they taper down from 3.5" to 3"... so we made them 3.5" all the way

[FEARIT]

use think a 3.5inch exhaust straight from the turbo is to small for making 450 to 500rwkw+ ?

[Harey]

My cat back is xforce. Yeah, huge suprise it hasn't been a restriction yet.

Tomei dumps. Hks front pipes.

As Ash said, list everything first

Interesting, it supports the theory that the exhaust is much more critical towards the front and less so at the rear.

[N1GTR]

use think a 3.5inch exhaust straight from the turbo is to small for making 450 to 500rwkw+ ?

Did you actually read the thread?

Not being rude, seriously

[N1GTR]

Interesting, it supports the theory that the exhaust is much more critical towards the front and less so at the rear.

Who's theory is that?

I'd argue it's equally as important the whole length. No point having a great front section if the back end is junk

[Piggaz]

Yeah actually, he spent 45 mins with the microtech the night before driving it to Victoria due to a faulty ecu another forum member sold me.

Yavuz wasn't happy with the tune but he said it's enough power for a weekend of fun but super safe so nothing will happen. On 98, 371rwkw 18psi. No mechanical changes the next tune was 403rwkw, maxed injectors changed to ID2000's and then tuned as is. Wait until my new exhaust is done, I'll be straight back to Yavuz for another tune with more boost etc

Edit; sorry, that was 3L. No one in Sydney ever tuned it while it was 2.6L, I misread your question, sorry. Also it's an 87mm bore, so a tad more than 260cc, but who cares it's splitting hair. Sorted out your pipes?

Ahh sweet. Do you know where Yavuz set the cams to? (thats if you have adjustable cam gears)

Re the pipes. I went to Westside exhuast on Friday. They quoted me $600. Went for a drive to Hypertune today and they said "a couple hundred". However they are in the middle of moving so they said to come back in a few weeks and they will have a better look. Just off first impressions I dare say i will get hypertune to do it.

[FEARIT]

Did you actually read the thread?

Not being rude, seriously

im asking if its really Necessary to go 4inch all the way through for having that type of power,

[N1GTR]

No. 3.5" should do it. 4" if you want to be sure.

If I can make 455 with a barely 3" anyone can make 500 with a 3.5" IMO

[Nee-san]

No. 3.5" should do it. 4" if you want to be sure.

If I can make 455 with a barely 3" anyone can make 500 with a 3.5" IMO

+1 I make 330 with 3" dumps into 4 inch and am looking to make a tad under what N1GTR has without changing it.

[T04GTR]

if you can fit 4" it will save you from the "is my exhaust a restiction" dilema further down the road once the wick is turned up.

3.5 to 4" is not much cost differance either, 4" is more common in pipe size if you going to get one made.

[omega36]

Anyone know roughly what a 3.5" catback custom exhaust costs? Just a ballpark figure. I have a great exhaust setup from the turbo rear to a massive high-flow cat, but after the cat, it's shit (just reflanged to fit on to the cat until I can get something made up).

[FEARIT]

nws thanks, ill just keep the 3.5 for now , see how it goes once dynoed

[N1GTR]

Ahh sweet. Do you know where Yavuz set the cams to? (thats if you have adjustable cam gears)

Re the pipes. I went to Westside exhuast on Friday. They quoted me $600. Went for a drive to Hypertune today and they said "a couple hundred". However they are in the middle of moving so they said to come back in a few weeks and they will have a better look. Just off first impressions I dare say i will get hypertune to do it.

They're adjustable but set to zero still

you know if hypertune do it the welds will be perfect

[GD51LA]

im not looking for outright power at the momemen, i just want to highlite that charactaristic rb sound.

what will give me that? are dump pipes needed? do dump pipes change exhaust note?

some gtr's i hear are quiet, even with exhaust. some are too loud. i want a medium volume with that rb hum (if you know what i mean)

the car will stay standard at the moment, i just want a nice sounding exhaust.

[R31Nismoid]

Mate that is probably one of the hardest questions to answer.

Everyone classes "quiet/loud" differently.

I suggest going to a meet/cruise, and go from there.

[bozodos]

straight pipe + flutes is all you need

[GD51LA]

i think you right, i will have to hear it in the flesh to know the sound im after

[N1GTR]

Like I said. Kakimoto.

Listen to one on a gtr while it's loaded up

[Nee-san]

I like the sound of my HKS Hyper, i accidentally gave it some berries whilst leaving a cafe carpark... i now have 3 children.