Originally Posted by Steve - UK

Yes I agree, it was the resonator that made me thinks the same - looking at the parts list (see earlier thread from Robby) I reckon this is the right pipe. I can only guess that Startech had these made to include the resonator (as per SRT) as this extra box acts as an expansion box and usually allows less baffling to be put in the rear muffler, hence a more sporty sound etc. However, if it turns out to be SRT, it will have a bigger bore pipe and I will have to cut the flange of and replace it with the old one to marry it up tothe front pipe - but, fingers crossed eh!
Thanks, Steve