what exhausts are guys n girls you using and do you have any preference? ie performance , noise, build quality and more imortantly fitting quality...... Trying to decide what exhaust to buy??

 

Mongoose all day long not too loud and less restrictive than a magnex

so im led to believe great all round system must have an outward rolled

tailpipe

 

Blueflame for me....identical to the mongoose except for having bolt together flanges insted of the mongooses slip over and U clamps set up.

 

Scorpion!
tabetha

 

I like the idea of the "bolt together flanges".....

 

Mongoose all day long.

 

Blue flame for me, the bolt together flanges are great, i fitted mine with the car up on axle stands in about 25 min

 

I dont think ive ever see one of these Blue flame jobbies.... dont suppose anyone has any pictures of theirs?
The only thing putting me off the mongoose is that they seem to hang quite low, kinda away from the body if that makes sense? where as the magnex fits right up in the floor pan.... just an observation - i could be wrong?

 

depends how it's mounted. the mongoose can be angled high/low short/long. This due the slip overs.

 

Two choices really.

Magnex and Mongoose.

Scorpian is a BIG no no as the boxes reduce in diameter and restrict flow.

 

Go thru my restoration thread on the rsoc (click my link) or you can also go on www.blackcossie.com which also has a pic of the exhaust parts off the car....excuse that site tho as its about 18mnths out of date which you'll know if you click on my resto thread before hand

 

mongoose is straight through one pipe and on 4x4 removes cat

magnex mirrors standard system and on 4x4 is cat back system. alot easier to pass mots emissions

but both systems are superb but mongoose obviously flows better due to it being one pipe with no cat

 

Scorpion reduces insize SLIGHTLY to offer some back pressure, needed for a turbo engine!!
Mine is std and 3 1/2" is the minimum size which is ample for at least 600bhp.
With scorpion you can also buy a pipe to replace centre box if you wish, mine makes ace power with scorpion.
tabetha

 

Is your tail pipe thats 3 1/2" tabetha? I thought the biggest diameter actual system was 3" with out a company obviously making one like euans

 

Blueflame, same as Mongoose as they make them also, but manufactured with but together flanges

 

I have a Mongoose and its alright but getting a little tired now. I like the Magnex system and it fits better and is a little less noisey.

If i was going to buy another off the shelf system i would go for the blueflame for the price i can get them for. I had one on my old car and as has been said its the same as a mongoose except it has bolt flang. The reason they are the same is because Blueflame used to make all of Mongoose's systems.

 

What I like about Mongoose, is it's silent at idle, so you can roll up to the lights stealthily, like in the right-turn lane when you want to go straight on, then NAIL it when the lights change

 

Mine still has the Magnex it was wearing when I bought it.

 

tabetha....are you mental?

A turbo engine needs back pressure?

Extensive testing has been done on the exhust on my car and it is the size it is for a reason.

 

Back pressure helps a turbo engine to develop more power.
NOTE "mental" tabetha did NOT say LOADS of backpressure but a certain amount helps, this would be arrived at by testing to see how much, but other things will alter this amount, most particularly cam choice/lift.
tabetha

 

the turbo itself gives the engine any back pressure it might need, so this means you want as free a flowing system as possible

 

i have a magnex on mine now with a mongoose 4" backbox lovely and quiet but just right when it needs to be,seems to drive better than before when it had the scorpian on with the centre box removed

 

Extreme from woodford garage (before Sue collins got involed!!)

Based on a mongoose with bolt flanges and prop and diff hangers and a 4" slash cut(bit different anyway)

Excellent imo

 

I had a really nice slash cut on my car with a magnex system before i changed to the blue flame, 4" too, strangely enough i really liked it but prefered the outword rolled 4"

 

Slash looks right on Jap cars IMO, but on Cossies...

 

mongoose all the way

 

Fair comment i'd rather have a 3.5" rolled out but thats how it came

 

mongoose for me defo
gr8 fit,gr8 noise of it too

 

mongoose on mine, pretty quiet at low speeds althought it does seem to scrape on every speed hmp, sounds the bollocks on full throttle

 

I too was under the impression that a turbo engine does not need

ant back pressure what so ever as rapid cossie said in so many words