Is My car Running Right

[Chrisyboyc]

I've own a 94 MR2 GT tbar uk spec REV3 ive replaced the exhaust with a mongoose system from cat back Blitz style filter magnacor Leads all the plugs are new as is dizzy and rotor arm apart from the increase in noise which is great the car seems no quicker than standard it has always seemed hesitant and sluggish and nothing has changed is this usual for a REV3 173bhp i also have an Audi A3 2.0 TDi Sport 140 bhp and as diesel it seems so much quicker any suggestions to perk it up abit(thats the car) thanks chris

[Chrisyboyc]

to the above its an NA not a Turbo incase you ask

[nacho]

check the lambda sensor, i found mine to be slugish, after the change it seemed to perk up.