I have a corsa, it's very slow and sluggish. It's my first car and feel like it could do with something to give it a kick. Here's my specs any reccomendations what I can do with it?
I'd say the only realistic option with a 1.3 liter turbodiesel besides an engine swap is chiptuning/remapping. And even then I'd research the potential of this engine, you'll be shortening it's life considerably. Many performance oriented modifications will work, but in my opinion are simply not worth the investment with this engine, as the gains will be minimal. It's just not the right engine for "a kick".
Unfortunately, there isn't a whole lot you can do with a 1.3CDTi - as the others have said, make sure it's in the best condition you can, but you're not going to get the 'kick' you desire.
I'm assuming you're fairly young, and in the UK (as you link to a UK site for the specs) - you'll almost certainly find that any modification will cause your insurance to rocket far more than the car's performance.
Increasing engine performance is going to fall into a couple different categories - tuning, increase air flow, reduce losses.
Before you do anything, make sure your engine is in good working order. Change the fluids, change the spark plugs, make sure brakes and suspension are in good order. You may be able to look around online and find a performance ecu chip that will give more aggressive fuel and spark curve. Beware of what you are getting though, a lot of them are fake/junk.
Increasing air flow is typically the first thing you do to increase engine performance. A couple of quick/easy/cheap bolt on mods are a cold air intake, and less restrictive exhaust. Here are a list of the common parts.
easy / cheap:
Cold air intake - pipes and cone filter
low restriction exhaust - cat, muffler, pipes
little big harder and more expensive:
larger throttle body
sportier cam shaft
Increase bore and/or stroke for more displacement
turbo, supercharger, and/or nitrous
If you make significant changes, you may need to upgrade other parts to keep up and supply enough fuel. I don't know enough about the specifics of your vehicle to say exactly needs to be done. Likely an ECU tuned to deliver sufficient fuel, and possibly a MAF that can keep up with increased air flow. Your stock ECU should be able to keep up with smaller changes.
Another place you can look is reducing losses. A few things that come to mind are a lightweight under drive pulley, and a lightweight flywheel. Also, any weight you can remove from the car will aid acceleration.
The overall drive ratio is important for acceleration also. You would want to increase this ratio for more acceleration. You would either need to find a transmission with closer gearing, or a higher final drive ratio. You can also decrease your tire size. Both of these changes will sacrifice MPG for power.
Before doing any mods, I always like to find a forum for people with the same vehicle to see what changes they have made, what worked, and what didn't. You can sometimes find cheap parts for sale, and its a good way to find vehicle specific vendors.
If you are looking for a cheap non-permanent modification with enough HP that you can feel...
One solution would be a propane and nitrous spray before the air filter.
The propane acts as extra fuel to burn, which will increase power up to the point that all oxygen gets consumed. Past that point the exhaust will start getting really smoky.
Then you add nitrous to burn off all the extra fuel.
Vauxhall Eco speeder did 150mph with the 1.3 cdti engine . The power was up at 125bhp. Any increase in bhp will cost money , engine management mod £ 350 for about 95bhp including egr disable . Straight through exhaust + 5 to 10 bhp . This is expensive in time and money , cylinder head off and a full porting job including turbo manifold matching 10 to 15 bhp . Hybrid turbo expensive 10 to 15 bhp . Fully balance rotating assembly and Pistons with con rods attatched .5 bhp but will run sweet . Power increase is only limited by the amount of money you can throw at it .