An enlarged throttle body involves more than just removing the wedge. It involves maching outer the throttle4 body and then manufacturing and fitting a bigger diameter butterfly. This allows more air in, more air and more fuel in should equal more power!

The later XEs never had this wedge and they make the same power so choose your own conclusions. The wedge is there to make the car more drivable.

correct, although tesco state that every little helps

so its a little mod that will give small gaines?

Apparently it gives you 5bhp, or maybe 10bhp. It's in the same league as fitting an induction kit and thinking you have an extra 10bhp because thats what it says on the box. But in just a sceptic.

is there a noticable gain in performance???

Oh, use liquid metal then :thumbs:

liquid metal is very stong you can drill and tap it once set, i can not see it breaking up and falling into the engine.
there must be 1000's of XE's with this mod and i am yet to find anyone saying it has happened.
alot of website tell you how to do this, and i am sure even total vaux did so aswell.

i have use liquid metal to seal cracks on gearboxs which takes a silly ammount of battering from the road and stones etc and there still going strong...

Lots of people have done the mod using liquid metal and its been fine.

scrap my idea then

A dremal doesn't even cut plastic very will so have fun cutting a large chunk of aluminium with one and liquid metal will break up and get into the engine....

liquid metal??

do it your self with a dremal and some liquid metal

look on courtenays website

www.courtenaysport.co.uk

can this be done at home? by me anybody got any befor and after pics?

they remove the "wedge" from the butterfly, giving better flow when throttle is wide open

What are the advantages of these as i keep seeing them on Ebay?