Buy Flowmaster 42543 40 Series Muffler - 2.50 Offset IN / 2.50 Offset OUT - Aggressive SoundFlowmaster 42543 40 Series Muffler - 2.50 Offset IN / 2.50 Offset OUT - Aggressive Sound Product Description:
- Durable fully welded 16 gauge alumInized steel
- Aggressive and powerful exterior exhaust tone
- Notable Interior resonance
- Excellent street, strip and off road application
- No Internal packIng to blowOut
Product Description
The OrigInal 40 Series muffler delivers an aggressive exterior and Interior tone. If you're lookIng for that origInal, Flowmaster sound this is the muffler for you. Constructed of 16 gauge alumInized steel and fully MIG welded for maximum durability.
Customer Reviews
Most helpful customer reviews
5 of 5 people found the following review helpful.
Flowmaster 42543 40 Series Delta Flow
By David Taylor
These mufflers are exactly what you expect from flowmaster, they sound great when you want them to and are much quieter at cruising speed than the original 40 series. I bought these for my 2003 Mustang GT and they were almost a perfect fit, a little shorter than the stock muffler and the in/out are 1/4" larger than stock but that matches up great with an aftermarket x-pipe and tailpipes. They also shipped very fast, arriving in less than 48 hours with the free shipping. I can't speak for many other models but if you put these mufflers on a 4.6 mustang you will not be disappointed.
2 of 2 people found the following review helpful.808 State Luvs Flowmaster!
By L. Sasada
Bought this for my 94 Sonoma and it fit perfect. Got the Adapter to reduce the exit pipe and it sounds purfect!!
1 of 1 people found the following review helpful.
loud
By Joe M.
The 40 series is one of the louder models flowmaster makes. Wouldnt recommend on small engines. I put this on a dodge ram 3.7 v6 and it sounds good at idle but its loud.you can hear it from inside my house. On small engine, has a lot of drown inside the cab and gets annoying. But thats my preference of how much sound i like. Sounds good while crusing but when it hits 2500 rpm, thats when the most drown hits. It eventually goes away while highway driving, higher gears kick in and sound goes down. Didnt notice much on mpg. And once you break it in, itll get a little louder. Hope this helpedReccomend on big engines( v8, big blocks, etc)If you like it loud, here you go!
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