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Old 09-19-2017, 10:51 AM   #10
edpontiac91
 
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Join Date: Aug 2007
Location: Piscataway, N.J.
Posts: 1,729
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I put a Magnaflow Firebird/Camaro on my 1994 25th Anniversary within the last few months. Since my Bird is a show car only, I was looking to get some extra rumble and have a stock look. When I first started in up, it sounded just like stock. I checked with Magnaflow and was told their muffler was designed to be close to stock as it is listed as a REPLACEMENT muffler and therefore they didn't want to drift too far from what was stock. I also found out it takes 700/800 miles to BREAK IN (meaning it will get a better rumble). My muffler did pick up some sound when letting off on the gas and sounds good at WOT, but it does NOT sound like an LS1 engine at idle.
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1991 FORMULA 350-GONE BUT NOT FORGOTTEN
1 of 1,197 with L98 Option/13.79@100 mph

1994 25th ANNIVERSARY TRANS AM GT -1
of ONLY 2,000 made/ Only 128 made with a HURST 6-Speed Manual and 91 with T-Tops and Compact Disc/ K & N Filtercharger/Magnaflow Performance Muffler/Air Foil- ORIGINAL MINT Arctic White Ultra Rare SURVIVOR. DAYTONA 500 PACE CAR Decal Kit!


SOLD: 1989 Turbo T/A in 1991 it ran 12:18@115 mph
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