After: Is this a normal exhaust bush? As the other one at the back was black rather than red like that?
I have changed my rear bush to a powerflex, which looks like the one you have fitted, mine is also red. You should be able to tell if its a powerflex bush as it is much stiffer and less movement than the rubber bushings (black)
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Powerflow Cat back and flexi
Powertec SL1 induction kit
Eibach 35mm springs
10mm Rear wheel spacers
Crankcase breather
Red hose covers
Stainless Steel engine bling
Gloss black grilles
Red calipers
Plus much more ebay items