[wagonman76]

I tried a Magnaflow glasspack on my 6000 wagon once. First it was way too loud, second I lost my low end torque. The only way to keep up the torque in OD was to get on the freeway and go 70. Later on I changed it for a Holley Flowtech 304 turbo style muffler, which was much better. Both that and the Celeb have an aftermarket cat, Holley Flowtech 304, and 2 1/4" pipe all the way back which is stock size but mandrel bent, everything is 304 stainless. Both perform great and Ive got a lot of low end torque. Also saved money in the long run since I havent had to dink with either exhaust since, its been many years.