exhausts

[hoshy]

Every car I've owned I've blown the back box in the first few months. my e30 is no exception

I've always avoided exhausts as something for the chavs and it looks like the standard pipe works on the 318i is fat enough. any point in putting a freer flowing backbox on for performance? Performance is my only interest. Simple rule:

if it's loud but makes me go faster. I'll have it.
if it's loud and makes no difference, or slows me down. it's chav (just like the k&n I took off)

what are the relative differences, befefits etc between changing backbox, manifold and full system? and how good is the standard system?

[Martinaston]

If you want more power save your money and buy a better car.
If you want more power fom that car and like to waste money then replace the whole exhaust not just one box. It will last longer.

[Karan]

Every car I've owned I've blown the back box in the first few months. my e30 is no exception

I've always avoided exhausts as something for the chavs and it looks like the standard pipe works on the 318i is fat enough. any point in putting a freer flowing backbox on for performance? Performance is my only interest. Simple rule:

if it's loud but makes me go faster. I'll have it.
if it's loud and makes no difference, or slows me down. it's chav (just like the k&n I took off)

what are the relative differences, befefits etc between changing backbox, manifold and full system? and how good is the standard system?

dude... i have a good 318i exhaust here for free if u want it.... its been sitting outside but was brand new about 3yrs ago i think....

its ures if u want... worth a try i guess, has no holes or anything

[hoshy]

perfect mate. any chance I can collect tonight?

[Karan]

one second..... i just need to go check if it is actually still there and hasnt been thrown outl,,,,,,LOL back in a bit.....

[hoshy]

sorry didn't mean to bit your arm off

[Karan]

sorry dude...cos teh zaust was outside and not covered it has a rust hole about 3x3in....... BUGGER

[Karan]

if its any use u can have it.....
im sure it can be bodged.... dunno how it is internally as it has been standing upright...LOL

also have centre section which was newere but that is under a pile of other crap so didnt bother checking that

[hoshy]

Ah shame. I may as well put a a new one on but thx anyway dude!!!! I reckon it's only the backbox that needs doing (at the moment anyway)

[Wilson]

if it's loud but makes me go faster. I'll have it.
if it's loud and makes no difference, or slows me down. it's chav (just like the k&n I took off)

Good quote, bought my car with just scorpion backpipe on it, V.loud with no difference in performance...!!

I'm taking it off and having a complete system put on next monday with six branch...!!!!! cant wait!!!

[Richy325iTouring]

just put a scorpion on mine
its not really that loud compairing it to the kwick fit one that was there id say teh scorpion was slightly very slightly louder but the higher the rev the quieter it got
must be a 6 pot thing

[hoshy]

if it's loud but makes me go faster. I'll have it.
if it's loud and makes no difference, or slows me down. it's chav (just like the k&n I took off)

Good quote, bought my car with just scorpion backpipe on it, V.loud with no difference in performance...!!

I'm taking it off and having a complete system put on next monday with six branch...!!!!! cant wait!!!

cool. n00b alert. 6 branch... is that individual throttle bodies?

let me know how it goes performance wise

[320Touring]

if it's loud but makes me go faster. I'll have it.
if it's loud and makes no difference, or slows me down. it's chav (just like the k&n I took off)

Good quote, bought my car with just scorpion backpipe on it, V.loud with no difference in performance...!!

I'm taking it off and having a complete system put on next monday with six branch...!!!!! cant wait!!!

cool. n00b alert. 6 branch... is that individual throttle bodies?

let me know how it goes performance wise

6 branch is an exhaust manifold with 6 individual pipes to make gas flow optimal.

means the gas escapes more efficientlly, thus releasing more power!

sure karan will be along with a pic in a min...

[Wilson]

just put a scorpion on mine
its not really that loud compairing it to the kwick fit one that was there id say teh scorpion was slightly very slightly louder but the higher the rev the quieter it got
must be a 6 pot thing

Think mine is louder than it should be.....!!!!!!

[hoshy]

Good quote, bought my car with just scorpion backpipe on it, V.loud with no difference in performance...!!

I'm taking it off and having a complete system put on next monday with six branch...!!!!! cant wait!!!

cool. n00b alert. 6 branch... is that individual throttle bodies?

let me know how it goes performance wise

6 branch is an exhaust manifold with 6 individual pipes to make gas flow optimal.

means the gas escapes more efficientlly, thus releasing more power!

sure karan will be along with a pic in a min...

ah cool. are they 6 to 1? I know that for 4pots a 4 to 1 is better performance.

[Simon13]

no 3 to 1 matey

[Karan]

heres the one i used to have on my car as an example

[Wilson]

Karan, Why's it not on there anymore?

[Karan]

Karan, Why's it not on there anymore?

cos i got a much better racing dynamics one end of last year..see my car in the photo gallery.....proba few pages down by now in that section

[Wilson]

Cos that one above, looks very similar to the one going on mine!!!


I've seen the pic of the one on yours now... looks nice

[Karan]

where/who did u buy it from?

thats a pic just before i sold it when i polished it all up to make it presentable,,,

there was quite a big power increase with the new one

[Wilson]

where/who did u buy it from?

From here....
http://www.e30zone.co.uk/modules.php?na ... pic&t=9457

[tylerma]

here ya go the one from Karan's car
taken last night at the Ace cafe

[panesar_e30]

the sound that car makes and the way it moves is out of this world!

[Wilson]

there was quite a big power increase with the new one

Is that something to do, with all the manifold pipes being the same length?? (sure I've read something about that on here)

Why does being the same length help? (not questioning, just learning!)

[hoshy]

so you guys think a full system with a decent manifold is worthwhile?

[Karan]

when i had an m40 and an m42..... i came to the conclusion as do most ppl that the one thing holding these back is the AFM..... this has really gtg!!!

the m40's small tb doesnt help either

exhaust will sound cool and make u feel faster wjhich i guess is what matters.... wouldnt bother with manifold though....

oh and an iS manifold wont fit either which is a shame..

[M5pilot]

A good 6 branch defintely helps matter depending on how good the design is.

Karan's RD manifold is an excellent peice of work.

BTB manifolds are also excellent

You have to be careful though, some manifolds dont make any difference whatso ever.

The manifold pictured above has shown 1 bhp increases and huge losses in bottom end torque on a dyno on Karan's car before he bought it.

[JoeP]

cool. n00b alert

I wouldn't call 570 posts particularly newbie!

[hoshy]

cool guys. I reckon I'll stick with the orginal idea of standard exhaust and then do the maf/unichip conversion.

[rowemeister]

All I can say is a good six branch will improve things! + the sound is fantastic

[hoshy]

I hope I don't sound like the niewbie idiot that I am but.... I have a four pot.

[rowemeister]

lol. just saw 2 off then!!!

[hoshy]

as I said I think I'll stick with the original plan