M3.coupe

Ok my magnex exhaust is rattling from the the rear box badly so time to change it
what exhaust would you put on??? to suit the RS turbo Mk2 best running about 200bhp

gus

iTrader: (1)

would it not just be the rubbers on the hangers?/

M3.coupe

No i don't think so, when i lift off it make a horrid noise spounds like the baffles have come away from the box and there is a bag of nails in there

xr2wishy

iTrader: (2)

nowt wrong with a magnex backbox or system really.
other makes like scorpion are just too noisey IMO.

milesy23rst

iTrader: (16)

If you are intent on changing your exhaust change to a 2.5 inch bore mongoose system with 3.5 or 4 inch tailpipe, for a few added ponys and a great sound on idle and on boost

Ad4m RST

+1 on Mongoose...

Best sound, least restrictive

fiend

iTrader: (1)

How do you know its least restrictive?

cosworth_wannabee

full magex system on mine, isnt too loud or annoying. havent had any probs with it either.

darrenb16two

ive got a second hand magnex rear section if your intrested. Mongoose easily the the exhaust for an rs though mate

milesy23rst

iTrader: (16)

Its been proven, most highly modified rst's run mongoose exhausts, scorpion have been proven to be restrictive

gus

iTrader: (1)

i prefered the sound of a magnex on mine

found the scorpion and mongoose too loud

hve a haywood and scott jobbie on there now so will see what this ones like

©hatter Box

only on 300bhp plus no trouble on my old zvh which was 260bhp at a push

milesy23rst

iTrader: (16)

I think you will find you are wrong there mate, as there have been numerous discussions on here about scorpion exhausts after people's cars have been taken to tuners to be rolling roaded etc and more than 1 tuner has turned round and said your exhaust is restrictive and it turns out the exhaust has been scorpion on more than 1 occasion!!!!!

Ad4m RST

There's a clear restriction in Scorpion backboxes, bore drops up to half an inch IIRC...

milesy23rst

iTrader: (16)

+1

project rs

i know it's daft but as they have a lifetime warrenty on them why not send it back to magnex and get another one

©hatter Box

we all know the pipe is smaller on the back box. but i never had any trouble on my scorpion what so ever and it was not restrictive in any way shape or form to slow my car down thats a fact. its only a fact on the likes of tt c&b tim and oilles cars they needed bigger bore of 2.5 to 3" as all of them cars are over 300bhp

so if you want to prove me wrong please do

ROB7656

ive always ran scorpian. how restrictive 1hp 10hp. anyone done a back to back test etc or is it hearsay??????

ROB7656

when does it become a restriction 180bhp 220bhp?????

fiend

iTrader: (1)

Any links to the tests/results?

milesy23rst

iTrader: (16)

Do a search on here there have been discussions about it and tests, and chatterbox i suppose the tuners are WRONG then and you are RIGHT??????

JamboRS

if u hear a scorpion on full chat u can hear the restriction if u know what ur listenin for.
if you have a backbox the same diameter as a std exahust then how can u say its not restrictive when the std exahust is when upping power.by having a bigger bore your gettin rid of exhaust gases quicker and spinning the turbo up faster.simple science.for 300hp id recommend a 3" bore as then the 2.5 may start being restrictive.

milesy23rst

iTrader: (16)

Thank you mate at least someone has posted talking some sense other than me and ad4m

Ad4m RST

Did you do any power runs with a different exhaust? nothing is fact without comparison so YES it was restrictive...in the form of a smaller bore through the backbox. HTH

The big power boys run a consistent bore regardless of 2.5" or 3" system so Scorpion isn't an option, or point of reference here. Especially since they don't go above a restricted 2.5" bore anyway...

10th_racer

i use a scorpion downpipe up untill the back of the sump then a magnex with a flexi from there back, reason for using a scorpion downpipe is that it gives more clearance around the starter than the magnex due to the shape of the downpipe.