ive got a 4" mongoose on my series one all my mates with rs turbos are telling me i should get a scorpion because they roar more so which is better? has there been any tests in fast ford on series 1 exhausts for performance ? i dunno which one is better dont want to swap it over and find a drop in performance

 

Stay as you are

 

cant really believe its worth swapping, ive had most on mine, only the size makes a difference i thought, got a mongoose 4" now, sounds fine, with the baffles ripped out!

 

Scorpions are too restrictive

 

thats what i thought thats why they make that noise like someone putting loads of pressure through a small hole

 

Mongoose rock , I have a scorpian on my Series one with a 4" tailpipe if you wanna swap

 

my rs turbo used to have an 'old' scorpian system on it which was restrictive due to the sharp 90 degree bend at the back of the system. This snapped at the backbox a few weeks ago so I brought another scorpian. When it turned up I was quite surprised to see that all the welds had gone (I think there is 1 on the entire system) and the 90 degree bend has been better shaped like the mongoose so they are no longer restrictive. Its also 2.5 inch straight through the backbox as well !.........so scorpian arnt as bad as every one says

Duncan

 

mongoose al the way, its the bore that counts and the bore thats in the back box,

 

magnex any1

 

mongoose going on my s2 eventually will be using an mongoose ecosy box

 

3" bore mongoose all the way

 

one of my mates has a scorpion just deciding what to do but cheers any way


So everyone say stick with the goose

 

aint that noisey as hell.... got a 2.5" mongoose on mine... and it sounds mad... LOVE the sound..

 

Ive always had scorpion. Havent tried goose coz ive been happy wiv what ive got.
Know what you mean about the bend though.

 

Weld quality on my Goose is amazing

 

3" is quieter.....I changed from 2 1/2 to 3" Goose and definatly a lot quieter

 

Its not the bend on the scorpion thats the prob afaik its inside the backbox where it goes from 2.5inch down to about 1.5 or 2inch, had a pic where someone held a measuring tape up to one but cant find it. stick with the GOOSE or even Magnex!!! end of the day why change cos it sounds better when its performance that matters

 

i'll agree there, its only a tad louder then my magnex was, but its alot more rumblier on idle and sounds simply awsome at full chat

 

goose

 

I`ve got a 3" bore goose, but from the factory you only get the one type of back box wich is 4" inwardly rolled, and silenced, so i got the tail pipe choped of and got a 4" outwardly rolled pipe put on, and got the best of both worlds

 

4" on a RST is overkill. 10 times overkill.

 

get the fcuk! mongoose my friend , had car on idle the other day , bloke from 5 or 6 blocks away said he could hear it!

 

In what respect is it overkill?

 

im curious to what that ment?

 

I agree with Rallysport, even if mongoose did make a 4" Goose it would be overkill for a RS Turbo & the majority of Cossies

What mongoose do make are.......

2.5 inch systems with various diameter tailpipes including a 4"

3 inch system with 4inch inwardly rolled only.

 

These engines produces sometimes up to 250 hp and is a 1.6l, normaly. 2.5 is more than enough. When we're talking 3l, six sylinders, giant turbo and 1000 bhp, then 4" is needed. 4" on a RST is just unpractical.

WRC cars uses 2.5" exhaust. If it's good enough for Petter Solberg, is more than good enough for you.

 

no one mentioned they needed a 4" bore did they

 

I agree with you 220tc, no one metioned 4" bore, it was a 4" tail pipe with 3" bore

 

Even 3" bore is overkill. The resistance of the original exhaust is in the muffler.

 

I know I have a 'inside' picture of my scorpion backbox somewhere.. Trying to find it

 

i ment 3" bore with 4" tail just to clarify

 

mongoose every time

 

oh dear, about a year ago i got a scorpion from the local rs breakers had a choice between a mongoose or the scorpion !!!!!!!!!!!! both 100quid each went for the scorpion as the price of the mongoose was cheaper in the mags new so thought i was getting a better deal .
only to find out reading this that i made a bit of a twatful decision

wish i went for the goose too now

 

Scorpion do have crap fitment. Only 2 out of the original 4 mounts? The magnex seems to use 3 and a flexy.