I saw the post below about the Dynomax Welded Ultra Flow muffler. I was thinking about adding one, but I was wondering about putting it in the 3" pipe between the rear axle and the dual CATs and then just putting a turn down on the 3" pipe before the rear axle pointed at the ground. What problems might this cause...(exhaust leaking into the car?) Thanks for any help.

I have a 2.5"x2.5"x3.5" home made y-pipe from the cats back. The 3.5" pipe goes back about 2ft from the cats, then I have a flowmaster under the passenger back seat(which the floorboard was raised 2" for the muffler)the flowmaster dumps before the axle. I dont smell much exhaust in the car but thats probably because I'm used to my eyes watering from exhaust in my 67 camaro.

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91 B4C 305 TPI - SOON TO BE 383
TREMEC 5-SP, STOCK 1-BOLT REAREAND w/342 GEARS
K&N, AIRFOIL
EDELBROCK HEADERS, DUAL CAT TO HOMEMADE Y-PIPE & 3.5" SINGLE PIPE W/ FLOWMASTER
CRANK PULLEY, MSD, FUEL PRESS REG
COWL HOOD, WELD WHEELS
14.1@ 98MPH
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OTHER RIDE
67 CAMARO - STREET CAR
BIG BLOCK, PUMP GAS
350TH w/ATI 10"
12-BOLT w/373 GEARS
10.90s ON MOTOR - ET-STREETs w/MUFFLERS