I have a 92 f150 5.0 with 150 000 miles. I am looking at changing the exhaust a little with a flowmaster super 10 muffler, the rest of the exhaust system will be kept stock.
Anyone know how this muffler would sound on the truck?
The muffler claims to reduce back pressure will this throw off air/fuel mixture?
I have heard of burnt valves, could the change to the super 10 cause this?
I like this truck and want to keep it for along time, would there be any long term effects if I decide to do the muffler swap?

 

If you keep the stock cats the truck will basically sound stock even with the super 10. The cats act as great muffling devices on their own. You could either get a high flow cat or just delete one or both of your stock cats. I had just the first cat and a 3 inch pipe turned down right under the cab and it was still pretty quiet. Now I have true dual super 10 knockoffs with no cats and it is very loud

 

A simple muffler swap will not damage your truck in the short or long term. However, it will cause an increase in the aggressiveness of the sound of your exhaust system. Because sound and volume are very subjective, what is loud to one person, may not be loud to the next. To give you a bit of perspective, Super 10's are the most aggressive street mufflers that we produce. Flowmaster's American Thunder Cat-back System for your truck uses a Super 50 Series muffler (rated basically 11 muffler Series below the Super 10 in terms of aggressiveness) and still produces a moderate to aggressive exterior tone.

I hope that this info helps! Feel free to PM me if you have any other questions. Good luck!

 

I had a cherry bomb extreme with the 2nd cat removed. It sounded good, my neighbors thought it was loud. I didn't think it was that loud

 

Thanks for the replies. My stock muffler is beginning to rust out and I am weighing the options between something different or stock again. Removing any of the cats isn't really an option for me since I have emission testing where I am.

 

I've been told the second thing on the exhaust is really a resanator which keeps things quiet and the first is the cat.

 

Just throwing in my .02 cents -- I tried a 50 series delta flow with both stock cats and couldn't even tell a difference compared to Stock muffler. Took off the rear cat, and gained a good bit of grunt, but still stock levels in terms of volume. I'll be trying a dual-output Super 40 or 40 Series in the future here. Anticipating just enough grunt and volume for enjoyment. I have the 5.8L.

The issue I see, is that with Stock cats it seems difficult to get definition to the sound... Might consider a high-flow. They can be had for reasonable (less than $100) prices.

 

Yea when I took the second piece out it sounded alittle louder not much but I agree it had more grunt to it.

 

The first one is a pre-cat, the second one is the main cat

 

My friend has a 96 f150 5.0 he has the stock cats and a y into two straight pipes with tips out the back. It sounds good but pretty quiet. Can't hear it going down the road unless you get on it and even then its pretty mild.