The UIM was the first upgrade I did apart from the POD air filter however at the time I also did a major service which include plugs, leads and cleaning the injectors in fact the car was off the road for two days while all this was going on as the injectors had to be sent away.
The HP gain was not significant but certainly it was still there. Looking back on it I should have waited until I could get my hands on a Lower Intake manifold as well.
Having said that I am very happy with the way it looks now and it's funny when I lift the bonnet to show people now their eyes light up and I get all warm and fuzzy.
I am still toying with the idea of headers and a hi-flo Y pipe but it will be a lot of money for another 10HP maybe I might do it in stages.
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