The MagnaFlow muffler should provide significant improvement, since it has the benefit of a 3-inch inlet and two 2.5-inch outlets. As you can see here, it has a perforated core, so it shouldn't be nearly as loud as a chambered or bullet muffler--a stealth angle we plan to play up throughout this project. | 
The bolt that connects the intermediate pipe to the cat must be reused, otherwise you must supply your own. Crazy Horse happened to have an M10 1.5-inch bolt lying around and they were happy to share. | 
In order to tighten the clamp securing the S-pipe (from the cat) to the mid-pipe, the 13mm bolts on the crossbrace need to be removed so it can be slid out of the way. Once Glen put the clamp on, he realized there was not enough clearance for the bolts with the crossbrace, so he trimmed down the bolts and then we were good to go. |
There is a total of five pipes (including each tailpipe), which have slip-fit connections and U-clamps to secure them. It is best to get everything slipped into place before using a 9/16 socket to tighten the clamps.... | 
...The tailpipes in particular required some tweaking to get them straight. MagnaFlow recommends at least .5-inch clearance between the tips and the bumper to avoid heat damage.... | 
...In case you are wondering, those tailpipes are a beefy 3.5 inches. |
Chris Winter strapped the 'Bird down to Crazy Horse's in-ground Dynojet and spun the rollers to the tune of 265.5 horsepower and 297.5 ft-lbs of torque. That is an improvement of 29.7 and 24.2 ft-lbs from our last visit! Not bad for just over $500 worth of mods. On the highway this added power was immediately apparent, and although no instrumented testing was performed, it appears fuel mileage increased as well. |  | 
The 30 extra hp translated to 2.5 tenths at the track. Our new best ET was set at 13.77 from its previous 14.02, with nearly a full mph increase. Short times were still an unimpressive 2.03 to 2.10 thanks to the 2.73s and an off-idle stumble. With a tune-up and optimum gears, there is no telling how much faster we could have gone on Raceway Park's sticky 1320 with the cool spring air. We will get to that, though, all in good time. |