The benefits of a Viper are definately noticeable on the road compared to any other "open" induction kit (K&N 57i, Green, PiperX induction kit, etc).

On the Corsa there's not much room to position the cold air feed, but once it's in a good position you'll get the most gains from that setup.

The Viper isn't as loud as other induction kits, but there's a definate induction note.

Back to the original question, there's not much difference between the BFO Cone and the Pipercross induction kit.
Obviously the BFO cone's bigger with a 200mm spinning and greater foam surface area, so you'd expect a lot more air to get through the filter.

Hot air can be a problem on some cars, so a cold air feed is recommended, but some bodykits let a lot more air through than standard too.

yeah i wouldn't pay all that money unless you have something with at least a bit of power.putting it on a corsa just aint worth the money

[Edited on 13-01-2004 by chewbaccaman]

dont think no filter will make a feelable difference in power ur just fooled into thinkin it because u just spent all that money lol lol so u wanna believe it!!

piperx viper is better but still dont think its worth it on a corsa maybe on a high powered car eg skylines/integras/scooby's etc

the power increases maybe noticable on the dyno but not on the road

that expensive viper thing by piper x does it sound any good?

I use a K&N with a custom made sealed unit round it and some 80mm ducting going to the bumper...

You want it as free flowing as possible but sealed is best for the corsa... especially ones with the stove, i mean CAT under the bonnet.

i used to have a piper x took it off and sold it the car had too many flatspots and guzzled juice:(

for performance drill ur airbox and get a panel. For noise has to be the BFO - need plenty of air feeds to it though cos its huge and so sucks in a lot of hot air

PVD BFO cone Vs pipercross induction kit

they are both the same
both are made my pipercross just one has BFO PVD wirten on it

it made a noticable difference in aceleration on my car. great bit of kit, worth every penny IMO

not really noticibly, but u'll notice throttle response increase

wud a viper induction kit increase acceleration?

If you have the money(£250) the viper made by pipercross! But if you just want the sounds go for a BFO or just drill your airbox!

ok so what is the best induction kit for increase in BHP ?

I have a bfo cone with a lot of flat spots! It sounds the balls but theres no increase!

lol anyother decision making question, i have heard the BFO cone is all noise and no power what do u guys think is better

cheers