Thank you all for your replies, really glad i had some real advice putting down! I'll buggar off the pressure valve as not one person seems to like them. I have just invested in a powerflow backbox thats a lot less restrictive and shopping around for a performance catback. I think it was a member on here Jamie, who put a 1.4 head on his 1.2. How do you go about this and what gains/flaws are involved? . Been googling/forum searching for many years so if you guys have any favourite websites i could have missed please jot them down here :-D I'm a big fan of FK the brand. Every experience i've had with there products ive been really impressed. Cheap and reliable. My lowering springs are really good and im investing in the shocks/dampeners to match. In discussion with a nearby metal worker to bespoke me strut bars front and rear so think i'm going in the right direction. Next step, team dynamics pro race 3 alloys. Stunning, don't look chavvy and really lightweight. Also share opinions guys!