EXHAUST

[loc33e]

hey sup guys almost done with my motor transplant but i got no zorst .

i got extractors that came with the motor and thats bout it .. i was wondering what sizes are people using from extractor back as in how many inches etc ?

and also wats legal and not legal .. ?

i was told i need a flex pipe so my zorst wont snap, and obviously a cat aswell.

i was quoted bout 650 - 700 for a flex pipe, stainless steel high flow cat and a straight pipe (not legal lol) from there on which i

will be purchasing a ECV for it.

well any help would be appreciated and what and what not to use

cheers

peter . :greenbounce:

[DavisJD]

If your running a 4age, most people go for 2 inch, or 2 1/4 inch piping.

Do some searching, there is a fair bit written about this on the site, as well as exhaust system design for increased flow.

[DavisJD]

This may be an interesting read for you.

http://www.ae86drivingclub.com.au/board/in...t=0&start=0 (http://www.ae86drivingclub.com.au/board/index.php?showtopic=14929&st=0&start=0)

[Marco]

haven't done my exhaust yet but i would go hollow cat :P a resinator and a muffler then straight pipe hehe and the flex pipe is where they get you i would shop around to see if you really need one but if you do make sure they charge you no more than 10 bux an inch

[federal]

I have 2 1/4inch off the bottom of stock headers, with a Cat, Resi and a straight pipe....VERY FREAKIN LOUD, i do have a muffler for the back, however it sounds shit....I'm probably going to swap the cat out for a muffler.....

[Jonny Rochester]

A flex pipe is optional. Most cars pictured on this forum, and most RWD cars do not have a flex pipe.

A small detail:
All Toyota RWD cars have the "engine pipe" or exhaust after the manifold clamped to a gearbox bolt at the bellhousing. This effectively keeps the manifold stiff and stops it from cracking. The rest of the exhaust is on rubber mounts of course, and a flex pipe is not needed. But most aftermarket systems forget this clamp, and the extracters end up cracking.

[loc33e]

thnx for the replies guys ..

so I'm kinda guessing this is what i shud be getting .. a high flow cat a resinator and a muffler right ?

but i kinda wanna ditch the muffler and run a straight pipe after the resinator cos i'll be having an ECV before or after

the cat just to make her a lil more quiet if the authorities decide to pull me over.

i want her loud but not TOO FREAKING LOUD lol !

and with piping sizes is 2 1/4" all the way resonable for a set-up ? advantages and disadv ..?

I'm thinking a 3" high flow cat and 2 1/4" from ECV all the way back including resinator ? is this stupid ?

if so what would be a resonable setup for me ?

sank you ! :2thumbs:

[Fozz]

i got a 2.5 inch without cat highly illegal and is cop bait but if i didnt get it so cheap id be running something else

[ke70dave]

i don't see why people don't run a cat

just get a cat from a skyline or something

something big, commondore maybe

find one that has a hollow section through the middle, and the catalytic converting stuff around the outside, pretty much just a high flow cat.

i saw a dyno test once on cat in/cat out performance gains, think they got 1kw out of it max, bit of a waste considering the fine for not having one...

[anastasios]

y don't u have a look at after market systems like fujistubo or watever

[Konakid]

<div class='quotetop'>QUOTE (ke70dave @ Apr 15 2008, 10:33 PM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=518570)</div>
i don't see why people don't run a cat

just get a cat from a skyline or something

something big, commondore maybe

find one that has a hollow section through the middle, and the catalytic converting stuff around the outside, pretty much just a high flow cat.

i saw a dyno test once on cat in/cat out performance gains, think they got 1kw out of it max, bit of a waste considering the fine for not having one...[/b]

The reason people don't run a cat is because it makes the exhaust note sound amazing if the right mufflers are used.

for 700 bucks id just spend an extra 200 and buy a proper jap cat back system as they sound the best due to being tuned length.

[embrace]

str8 pipes FTW 2 1/2 inch stainless, yes its stupidly loud but its awesome
[attachment=24977:11022008080.jpg]

[RobertoX]

<div class='quotetop'>QUOTE (KonaKid @ Apr 16 2008, 03:27 PM) <{POST_SNAPBACK}> (index.php?act=findpost&pid=518846)</div>
The reason people don't run a cat is because it makes the exhaust note sound amazing if the right mufflers are used.

for 700 bucks id just spend an extra 200 and buy a proper jap cat back system as they sound the best due to being tuned length.[/b]


tuned length straight pipe.........

i love jap shit but a jdm exhaust is pretty much pose

[Paw-DK]

buddyclub spec2 ftw
even comes with a silncer that improves midrange torque when in use
but only problem i think is that the racing straight thru exhaust are much thinner in metal then the normal cat-back system
dunno if it a good thing for lowered car
and my mate had no cat on his straight pipes.. you could literally hear every single groan coming out of the 20v :P

[johl]

i think 700 is a bit rich for an exhaust mate. i booked mine in at a local exhaust shop and and getting a track exhaust 2 1/4 inch mandrel bent straight through twin pipes and a street exhaust 2 1/4 inch press bent with cat and muffler for $450. i'd shop aroud if i were u