Hey guys, if you are wondering how to get a perfect sporty sound from your astra without spending about 150 quid then heres what i did,
i have a 1.8 sxi, so im not sure this would work on other engines.
your exhaust runs like this
Cat-/----Mid Silencer-------/Rear silencer.
firstly order in or go to a scrap yard and find yourself another Astra Mk4 mid section with the mid silencer. then, cut the mid silencer out of it and replace with a straight through piece of pipe. then put next to your existing mid section and connect the handles in the right places, it will then sit perfect on the original holders. you then take the mid silencer you just cut out and stick it on the end where your rear silencer should be, fasten it all up together so it now goes
Turn the engine on and you should hear the beautiful sporty sound coming out.
Once its all in place and your happy with the results buy yourself a nice tail pipe for about 40 quid and stick it on the end for a nice finnish.