There's a plethora of high quality cat-back exhausts for your vehicle out there. Take a look at FVD/Brombacher, Tubi, Milltek, and Capristo to name a few. Also, a good site to check out is
www.planet-9com. There's a wealth of knowledge to be found there regarding 987 platform vehicles. But, don't leave us here a the 986 forum !