Sorry if i came across that way im just so sick of people slating cone's to death and jump on pannel's as if there made of gold and murr when i genuinally struggle to see the difference in gains and losses with a proper set up cone package. I got my cone for £20 quid with a heat shield and a £12 bought me a new feed for it so for me to buy a pannel it would of been "un financally viable" (can't spell sorry) and true its not severly modding but you know how pickey some garages are when you want to trade in espesh when its your 1st car.
I will conceed that the amount of negative cone stories i have hurd myself is ofputting but so far im yet to be involved in one (touch wood).
On a different note what are st170's like to live with day to day on commute's etc i was genuinally concidering getting one in about a year's time but the insurance group 15 was a bit well offputting so i was leaning more towards the st fezzy (group 13) its worth saying either choice would be left standard.
ive worked on many a car doing these mods theres a few reasons why cones are slated first the amount of cheap universal cones out there by big companies like max power for example they are not designed for the car they dont suck enough air and second they are made with poor materials that let particles into the engine that shouldnt get in there causing over time damage. the enclosed boxes are yet another con they do keep the air cool but the it can only filter as much air as it can fit into that small enclosed space on volume of air it takes in no more than a standard box would it is however cooler air so small gains of around 2.5 hp -4hp max will be gained i dont hate cones or enclosed boxes they have there purposes if set up correctly a standard cone fitted right and made for the car by a good company like k and n with a heat shield placed correctly to reflect the engine heat and a cold air feed in the right place will give similar gains and work just as well however it was tested and for example it was found a honda civic type r worked more effectively and gave the best gains from the standard box and a panel filter the 300-400 induction kits lost power the reason is when you sit still in traffic the engine temp increases and theres no forced air going into the cone so you get a power loss due to heat soak after a few minutes of driving the temp will go down and it will work as it should again. its really down to the person what they want and like but its a fact that many have been going out there spending 100 quid plus on induction kits while the manufacturer of them laughs youll never notice 2-4 hp and the noise makes you believe its now sportier and faster just like a guy can have a big bore on his car you hear it in the distance and it sounds like hes going fast till he passes you at 20mph. there are a lot of bad cone stories for the reasons ive stated spotty kids in corsas whacking on any old one they can get a hold of not setting them up right etc ive had a 1.2 corsa in with a cone from a subaru sti they think its gonna make more power somehow and ive had ones so cheap thet thay have holes in them and yes they were all in for running problems might have summat to do with the dodgy filter and the exhaust made from 3 bits from 3 different cars and the 2 universal back boxes welded onto the end i aint kidding