So I'm planning to map my 5 door once my warranty runs out but I've got a few questions, please respond with corresponding numbers:
1. How much am I going to pay, I want the best
2. Can I opt for bhp increase AND mpg increase?
3. What are the downsides of a map?
4. Why don't manufacturers out these maps on in the factory?
5. Can anyone recommend any good places to get it done

I have an 11 plate Astra 2.0cdti sri. I have been having problems with a puddle appearing on the passenger side floor. There are no other wet areas of the car, and it doesn't happen everytime it rains. I saw a youtube video of an older vectra that had the same issue and it was caused by a drainage cup? under the front screen getting clogged up. I think i might have the same problem as it doesn't happen everytime it rains. I had a look around that general area but as i know next to nothing about

I picked up the car in mid December 2015

Its a June 2013, Sri 2.0cdti 165, manual, sovereign silver, with factory 18" alloys and space saver wheel

First thing I changed was the air filter, using a K&N panel filter

Today I changed the low beams to Osram nightbreakers, as I had noticed the headlights seemed pretty rubbish, hopefully the nightbreakers will make a difference

I have ordered up a racechip, which should arrive in the next week or so

Next up after than will either be a Db

Hi all,

I'm after 3 oval exhaust tips like on our 2.0 cdti's. So if you or someone you know is selling please let me know!

This is what I'm going for.
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Hi All

Always felt my GTC 6spd box was a bit notchy 1st-2nd, well yesterday it finally became a more serious issue and now the car will not hold in 2nd under any load it just wants to jump back into neutral so nursed it home doing 1st - 3rd changes and dumped it on the drive.

I've built gearboxes before but not for anything Vauxhall - I have seen pics of gearboxes rebuilt in situ by removing the wheel, arch and casing to reveal gear clusters but I think that was an earlier astra possibly w

Hi

For some reason, that I don´t understand, my GTC was from factory not ordered with factory LED rear lamps despite having front LED DRL and AFL light.
I had to rectify that mistake. Price from dealer was 850£ + 70£ wiring. I managed to get it all for 450£ with wiring as my workplace imports Valeo parts from France.

I also bought HappyBlue OBD module so I can make rearlights and numberplate light not to be shown with bulb warnings in the display. With HappyBlue module you can also alter alot

As above I have just got an ice white astra which i upgraded from a 1.4 08 astra and I'm in love however I'm just wondering am I stuck in terms of upgrading the speed of this car due to it being a 63 plate and being s/s? I mean I'm in no hurry due to only just getting the car im just wondering what my options will be when the time comes. Am I stuck to just a pedal box or are there any alternatives?

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So when my car had Turbo issue's the dealership did a software update to the ECU.

This update is related to the DPF 

Quote:It adjusts the parameters for the dpf temperature sensors to improve dpf performance and avoid overloading dpf, eml lights and in worst cases engine stalling.

it's a software weakness that only effects astra j, cascada and zafira tourers up to model year MY13.5. The update will just adjust the software weakness that is present.

At first I didn't notice