bellaby

😂 good point. I’m way too far away to have it done. Do us all a massive favour and solve this mystery 🤔

@Linas.P not sure what you're asking there mate? you mean i get more torque from lower revs? I know it feels sharper and seems to pull slighty better. I know its not very scientific tho. I may record mine doing 0-60, see what i get from it? and compare to a stock is250

i should add that the dyno testing done by K& N was on a 350. so probably get less hp from my 250.

No, never dyno tested the car before or after mods. But I have owned the car for a while now, driven it plenty without the K&N typoon induction kit or exhaust air filter made a slight difference on throttle response, even in sport mode. but the noise it makes is the most notable change. Worth the ££ i spent just for that sound imo. and it makes the engine bay look much nicer. the exhaust, again, feels a bit quicker and picks up the power earlier. but this is just me "feeling" the car as i drive it. not very scientific i know. Its an ARK DT-s exhaust system, Kept the original manifolds and cats, but get more flow and hopefully more power. With the typhoon and exhaust i should get about 23bhp+ from what the websites stated figures. http://www.arkperformance.com/ARK-DT-S-Lexus-IS-250-350-RWD-06-12-p/lex-is-rwd-(06-12).htm https://www.knfilters.co.uk/search/product.aspx?prod=69-8701TP

This is true. I'd have to drive it a few hundred miles there and back so i'm pretty sure i'd know if it was working the way it should. and decide to get a refund or not Still not sure. i have typhoon induction kit and full stainless steel exhaust system anyway, not much point trying to squeeze any more power?? i'm thinking just save up for an IS-f instead lol

I doubt i'd have it done tbh. Too far to travel for me being in Derby, expensive job that won't get many gains imo. but it's nice to know it can be done.

Well, I emailed them and the guy was very helpful and said it can be done. But not many people do it. And that gearbox tuning can’t be done on this car. But engine remapping can. For the money it might not be worth the 20+ bhp gain. But it can be done

Is 250 engine remap this place does engine remapping on the is250 auto. It’s in Kent.