Taken from my readers ride:
This week I fitted my 3" turbo back, decat non res COBRA exhaust system. It came delivered to work for £610 all in. Could not wait to fit it!
The exhaust came in 3 bits, down pipe and decat, centre section and back box.
Unfortunately I was not supplied with the fitting kit I should have been supplied with - so I contacted Cobra and they sent out a gasket and bolt kit. I jacked the car up on axle stands and ramps and looked underneath to start my work. I knew that the standard system is in 2 pieces which means cutting off the old system. You can do this with a hacksaw - I used a angle grinder!
The middle section you can unbolt - but my bolts where so bad I had to grind them down then punch them out.
I started from the back to the front incase anything happened I could still drive the car. This is a complete ball-ache by the way and exceptionally hard on axle stands/ramps. I had to prop the car higher then pictured and even then it was very hard to manoeuvre the middle section over the rear axle to meet the back box. Eventually got this done by (hitting with a hammer) the hook that is on the rear middle section of the exhaust in order to bend it slightly so I could get it through. Once that was done, bent it back job done!
Next bit was the turbo back, again exceptionally difficult to get too open the bonnet to get the light in! I was fortunate I had 2 other people with me (1 my brother and the other my mate who is a mechanic for Regal Autosport) so together we managed to do it and fit it.
If you do not have the correct tools I would strongly suggest you get it fitted by a garage.
I actually wish now that I had gone for the resonated system, so much so that I will be getting a silencer welded in by my local exhaust specialist because it is too loud for me. (for £30 for a resonated system from Cobra, I really wish I had done it!)