New LS1 Owners - Newbie Tech - does a F body flowmaster muffler flow better then a stock SS muffler?

hello, i just want to clarify, does the camaro SS muffler flow better then the 8- series flowmaster muffler? im going to put on the SS muffler on my car with a cutout

I doubt it. Unless you're talking about the stock optioned SLP dual/dual SS muffler. In that case, I'd say it definitely outflows the flowmaster. Or the factory GM SS muffler from 1998 that was single in, single out. I've always heard this was one of the best flowing factory GM systems ever. Don't know how true that is though.

Most people going from any stock LS1 exhaust to any crossflow flowmaster muffler don't see any big gains, but I rarely hear of anyone losing power over stock.

I highly doubt it.

I doubt it also. Like said above.

humm thats funny, i thought thats why people called it a chokemaster, because im talking about the 80 series one made for the f body. i wonder where i can get my hands on the slp muffler. but i was going to replace my flowmaster with a factory ss muffler with a cutout because im installing a cam.

just get a SLP LM1 muffler on there if you wanna be loud, don't even bother with the flowmaster IMO.....

i want to be as quiet as i can thats why i want the ss muffler i already have a flowmaster. i heard people would dyno about the same or less with a flowmaster compared to the ss muffler.

just get a SLP LM1 muffler on there if you wanna be loud, don't even bother with the flowmaster IMO.....

i second that! i love my loudmouth:drive:

Get a Magnaflow or SLP Dual/Dual system or Hooker exhaust.

I think people complain about the flowmaster poor flow compared with what its available in the aftermarket. I have a Magnaflow catback and love it. At idle the sound is close to stock with a bit more rumble and it opens up at full throttle.

i heard people would dyno about the same or less with a flowmaster compared to the ss muffler.

In all the years I've been around here, I can only remember one person posting about a lower dyno number with a Flowmaster 80 series over stock. Who knows what happened there, but it's not a common result so personally I'd just disregard it. Dynos have a margin of error of a few HP, so if it read a bit high on the stock muffler, and a bit low on Flowmaster, that could explain it. You can't expect much gain from just a muffler on a stock car anyway.

I think people complain about the flowmaster poor flow compared with what its available in the aftermarket.

This is exactly the reason. Flowmaster isn't going to cost you power over stock, and most likely you'll gain a bit. But most other systems on the market will give you a bigger gain, so many people shy away from the Flowmaster....figuring, if you're gonna do exhaust, might as well get the most gains possibile.

I have a Flowmaster 80 series on my '02 Z. I just had it put on because my stock muffer was breaking apart and rattling like hell. Flowmaster sounds great, IMO, and power gains weren't much of a concern to me on this stock car.

i want to be as quiet as i can thats why i want the ss muffler i already have a flowmaster. i heard people would dyno about the same or less with a flowmaster compared to the ss muffler.

magnaflow 12267. Here is a vid of how it sounds on my 95 T/A with a stock exhaust system. It's pretty quiet and i've heard it outflows the stock muffler.

http://www.youtube.com/watch?v=pPy4nxmQZbk

^^^ wow that car is pretty quiet. i do really like the sound of the flowmaster but im a bit worried that it might be too loud with a cam. im going to try and look for a slp Duel/duel muffler