What Do I Need For My Exhaust

[_bobo_]

Ok ive decided ill just get custom exhaust made

i just need to know what to tell the guy from the exhuast shop

im planing on buying most of the parts myself and just get him to do the piping (2.5inch)

whats better straight through or mandrel bent?

Muffler- APEXI N1 <--trying 2 find one cheap or HKS Super Dragger Muffler if no luck.. its Xforce lol

HI Flow Cat - dont know what size ..2.5 or 3 inch

Resonator - he can provide

piping - he can do

is this all i will need???

Updated in post on 22nd Jan 08

Edited January 22, 2008 by blk_sz

[inthisglass]

X-force muffler will shit you to tears.

where are you gettign it done and what has he quoted you?

[Kozeyekan]

X-Force is a mixed bag. I have had some people say it's great, others say it's tinny. It's a personal thing.

OK, what you will need:

1. dump/front pipe. Preferably split. You can usually buy these on here in the group buy section. Use the search function and look for dump pipe or something similar.

2. Cat converter. Group buys are on here occasionally, or try one of the traders. From memory BOS did both these and the split front/ dump.

3.cat back. If you're ordering the Apexi N1, it'll have everything else you need. You can easily do the installation yourself. Check out the DIY forums for how. Also, consider ordering through www.nengun.com. It's the cheapest I've seen, though it can take about 3-4 weeks to get to your door. I bought an HKS silent from there for about $650 delivered. A quick glance and I can see they have this there:

161AN001 Nissan ECR33 RB25DET, BCNR33 RB26DETT Pipe 85mm-95mm 1 PCS OD 115mm AU $ 384.43 AU $ 624.70 (Delivered)

there's Blitz, HKS, Nismo, etc. there also.

If you're wanting him to custom make one, mandrel bent is best. It's impossible to go straight. the channel built under the car is bendy, so the pipe there must be too.

[_bobo_]

ive got a GTS so i dont kno..dont want to spend to much

i got quoted 600-700 and i said ill buy the cannon muffler its from a Local Exhaust Centre in Rowville

i really want a HKS hi-power 409 but they could be $$$$$$ and i want 2.5inch piping

Kozeyekan..hks silent...what size piping is it....i dont want anything bigga than 2.5 inch and like a 3-4inch tip for muffler

[Eug]

Ok ive decided ill just get custom exhaust made

i just need to know what to tell the guy from the exhuast shop

im planing on buying most of the parts myself and just get him to do the piping (2.5inch)

whats better straight through or mandrel bent?

Muffler- APEXI N1 <--trying 2 find one cheap or HKS Super Dragger Muffler if no luck.. its Xforce lol

HI Flow Cat - dont know what size ..2.5 or 3 inch

Resonator - he can provide

piping - he can do

is this all i will need???

you've already started a thread on which muffler to buy, there's no need to keep making a new one. not to mention i can see 2-3 threads on the front page alone. exhaust systems are so variable, everyone has a different setup preference to sound, power, looks, height, legality, emissions, so there isn't one ideal setup. bar a set of extractors and a sidepipe. a search would yield more and better results.

also to get your understanding right; straight through and mandrel bent aren't comparable terminologies.

it's mandrel bent and press bent; for the record mandrel bent is preferable.

straight through means exactly that, nothing in between - straight through (i.e. no cat).

you will need flanges and gaskets, exhaust shop can provide that.

the cat will be dependent on what size piping you get.

have a serious think about your questions before you post them up, half of them can be thought out logically or found within the forum, or even speaking with your exhaust guy! i mean he is the one putting it all together afterall.

[GTS4WD]

First: As eugene said.. Mandrel.

Mandrel bending is when they bend the pipeing without crushing it in the middle of the bend. Get a drinking straw and make a 90 degree bend in it to see what I mean.

Second: The dump pipes you see in the group buys. I am not sure if these will fit an NA. If they do. They would be too large and you will loose volumetric vacume.

Third: As said before.. X-FORCE WILL GIVE YOU CANCER OF THE EAR.. too much droning and shittyness. I know.. Dad has one.

Thourth: HKS supper dragger systems are, again, 3" so their too big. Plus their about $600 cat back from what I have seen.

Fifth: Cat. If your not making more than 200kw or revving the engine very hard and high, you wont see many gain. Save your money

Sixth: Can we start a sticky on NA exhausts? It seems as though every second post here is on exhausts.

[Greg]

The sticky thread is a great idea

I do have a vested interest here, but you should seriously just buy my non turbo HKS Super Drager system. By the time you pay for the labour required to weld the custom system together and purchase all of the components separately, you won't have much change from $700. Then you don't know if it is even going to flow very well. Sound characteristics are unknown. If you're lucky and all goes your way - you will have a nice exhaust system.

Alternatively buy mine and you are guaranteed to be increasing power and torque as much as HKS possibly could - without all the noise and drones so often associated with a custom system.

As a final attempt to sell my exhaust to you - I will offer my labour free to install it for you. You drive to my place and drive away with the exhaust system installed. I've done plenty before - it is an easy job

[HackerX]

1. dump/front pipe. Preferably split. You can usually buy these on here in the group buy section. Use the search function and look for dump pipe or something similar.

Split dump/front isn't going to do him much good on a N/A

Price up some extractors

Depending one what kind of sound/look you're hoping to achieve, you're looking at basically two styles of exhaust:

a) Extractors -> Cat -> Front Muffler -> Rear Muffler (all with 2.5" mandrel bent piping)

which will produce normally a sound not much louder than stock

or

b) Extractors -> Cat -> Resonator -> Cannon (with 2.5" mandrel bent piping)

which will be a hell of a lot louder (louder than turbo cars, which is something to take into consideration)

If you're just looking for the sound without any performance gain, you can forgo the extractors and cat, and just get a cat back system

[UNR33L]

i dont think that there louder then most turbo skylines..

[inthisglass]

The turbos act as a bit of a muffler so when the N/a's have the usual exhaust set up

ie: extractors, cat, resonator, cannon they are quite a bit louder than the turbo models.

but being louder doesnt neccesarily mean better.

[Eug]

but being louder doesnt neccesarily mean better.

louder means faster, well that's what i tell all the 16y/o car slarts

[GTS4WD]

louder means faster, well that's what i tell all the 16y/o car slarts

AND RED GOES FASTER!

Nismo sticker = 20% increase in torque and power

Mugen sticker = 25% increase in torque and power.. (Dont laugh!.. I have seen several Nissans with Mugen stickers!

Alternatively buy mine and you are guaranteed to be increasing power and torque as much as HKS possibly could - without all the noise and drones so often associated with a custom system.

LOL!.. shit greg!.. you have been trying to sell this for yonks!.. Should of posted it to me when I asked!

And side note.. as I said before, dont bother spending money on an aftermarket cat. It will not do anything on a low power NA application!

And as before.. dont bother with a dump pipe..

[R34TRK]

hey guys i just brought a r34 25GT and wanta custon exhaust on it

mmy idea is to make it sound as close to a rex as possible. im thinking of getting an 2.5 from the engine and a 4 incch tip...

what you guys recomend????

help!!!

[R33 S2]

hey guys i just brought a r34 25GT and wanta custon exhaust on it

mmy idea is to make it sound as close to a rex as possible. im thinking of getting an 2.5 from the engine and a 4 incch tip...

what you guys recomend????

help!!!

ermm why do u want ur line 2 sound like a rex?

[R34TRK]

ermm why do u want ur line 2 sound like a rex?

coz nothing beats the rumble lmao! nah i wanna know what exhaust or if there is an exhaust system that gives that rumble effect

[inthisglass]

The rumble effect is caused by the WRX's boxer engine not the exhaust.

the only way to make a line sound like a wrx is if your engine is fu**ed.

either enjoy your RB's beautiful note or buy a WRX.

[GTS4WD]

mmy idea is to make it sound as close to a rex as possible.

Rip the block out.. put in a flat six.. from a liberty or something.. or.. get $125,000 Porche flat six with a zorst..

In all honesty.. its not possible mate..

Rex's sound as they do because of the engine being a flat 4 cylinder design apposed to a straight six.

When i dropped in my RB25DE it sounded like a V8 WRX before all the carbon and all the settled shit was cleaned out of the engine.. mmmm.. that was nice..

Another possibility.. *DO THIS AT YOUR OWN RISK!.. IT IS ILLEGAL* you can either disconnect part of your zorst system, or drill holes through the piping.. sounds awesome.. but REALLY REALLY LOUD! and mean..

[R34TRK]

Rip the block out.. put in a flat six.. from a liberty or something.. or.. get $125,000 Porche flat six with a zorst..

In all honesty.. its not possible mate..

Rex's sound as they do because of the engine being a flat 4 cylinder design apposed to a straight six.

When i dropped in my RB25DE it sounded like a V8 WRX before all the carbon and all the settled shit was cleaned out of the engine.. mmmm.. that was nice..

Another possibility.. *DO THIS AT YOUR OWN RISK!.. IT IS ILLEGAL* you can either disconnect part of your zorst system, or drill holes through the piping.. sounds awesome.. but REALLY REALLY LOUD! and mean..

thanks guys!!!

[Eug]

dropping a cylinder will make it sound like a rex

[davib]

hey guys,

exhaust should be a sticky for sure

mixed feelings with exhaust topics,

i can never read about a definite answer

i do however, have an apex'i n1 exhaust system

i like it, cause it sounds like a turbo r33

i've had a turbo s2, had to sell

got a n/a at a bargain

now the n/a with the apex'i feels gooddd, fast..

but seriously when im at... say 2000rpm on 2nd gear

its goess... but once i get to 3000rpm it doesn go as harddd

like it platues... if u guys understand me?

issert because im use to the boost in the turbo?

or am i loosing power ?

1st gears sounds awesome...

just when im driving normally then GIVING it.. its a bit weird

ok goodnight guys!