online expensive ones are plenty, magnaflow, borla etc.
I got mine Range rover done from Khwaneej in shj, local custom made exhaust and its awesome in fraction of cost.
Changed mufler, whole 2.5 pipe from start and all is bolt in solution. Easy for refitting original for passing. Total 600 aed.
Location: enter shj from troy university road toward bmw road, after entering bm road on right look for mercedes (gargash), take immiedte right after that and its big in compound manufacturing unit on ur left.
Give Khalid white Range rover reference they will give u good price inshallah