andycozyboy

can anyone tell me which is best for more bhp i have a 4x4 cozzy. Is a 2wd exhaust better for a 4x4 thanks.

scoobydooby914

You need a 4x4 exhaust for a 4x4 cossy mate. Mongoose are the best all rounders I think

bigluke200

iTrader: (3)

Don't get a scorpion unless you want THIS in your back box

tabetha

Don't listen to the above re scorpion, it certainly won't be an issue unless you're going for serious power ie 550+.
Manifold wise, if that was your meaning ?, the 4wd one gives less lag but starts to be less effective than a freer flowing one after around 400bhp.
tabetha

bigluke200

iTrader: (3)

It was severely restricting mine at 405bhp

rs2klee

I have the Scorpion 4" backbox and i allways thought it was a bit tight, like ringing its neck but then was told as the gases are really hot and condenced it didnt affect the flow untill it exits the exhaust. " i may be told wrong " so correct me if i have been given yet again wrong info !

ajamesc

i have a 3inch scorpion on mine with 500 and it shore dont go like its restricting it lol plus m.a.d never told me it was lol

bigluke200

iTrader: (3)

The newer scorpion back boxes are 3inch the whole way through.. This is what I've just upgraded to the older systems have a 2inch bore through the mid box and back box... My mid box was removed a while ago so it was just the backbox that was strangling my poor T38
Ajamesc, is yours sn older system or a newer one?

Staffi

iTrader: (1)

Yep, agree with Luke, i was told alongtime ago by Karl Norris about the Scorpion being restrictive for 400 and above, but as said, that's the 2" bore

ajamesc

mines been on the car for around 10 years now so id say old type but has no center box and not restrictive on mine it gos very very well!

bigluke200

iTrader: (3)

cheers Pete
I bet it's the newer design mate if it's the older one it will have 'scorpion' in huge lettering across the bottom of the box the newer ones don't. They changed the design in the mid nineties iirc.

I bet it does go well!! Is it the saff I saw some pics of in Newbury? Looks awesome :thumbsup: if your over this way again you'll have to let me know