I have heard that flow-master exhaust is very restrictive when it comes to smooth flowing, is the true? and what is a good way to fix this problem without replacing my brand new exhaust?

 

If you have cats, cut them off! Also maybe some headers!

 

xpipe helps smooth things out.

 

Nothing wrong with flowmaster mufflers.

 

Well if you compare flow numbers of a Flowmaster to a Magnaflow or Dynomax hell, just try to look through them...you'll see the differences.

I do agree high flow cats will help a lot too if you still have them/are required to have them.

 

I had a flowmaster and it sounded really nice. I was happy as far as sound goes. But 2 years later and my exhaust is lookn ugly ....

Oxidizr hooked me up with a Magnaflow exhaust system and to say the least im impressed. Just by looking at the cat-back system I knew the quality was far superior. Sounds wise.. your looking at a more mellow but very distinguished growl. Whereas flowmasters just scream to high heaven... my little 4.8 and a delta 40 series was friggn loud.

Magnaflow

 

My flowmaster does really sound freaking awsome, its loud and it makes my Big Block sound like its got even bigger *****, also i allready have doen the X-pipe, and no cats, so i am pretty much doing good for making flow better i guess, thanks for the info though.

 

I've had flowmaster for 3 years on one truck, with a lot of miles, and it still does well. The power gain is significant, but the sound is spectacular.

 

I installed a flowmaster on my 96 chevy 350 vortec ecsb a few weeks after I got it June 96, and it picked up almost .5 tens in the 1/4 mile, it was still on when I sold it in Dec. 03 with 140,000+ miles and still sounded great! As far as performance we were dynoing a 632ci bbc for a N/Pro Street car last weekend that made 1297hp, when we put the Flowmaster exh. off the car, on the dyno it only lost 12hp!

 

wow 1297 that is very impressive, of and another thing, i think for the info for the Truck V-8 Performance 7.4 should be added, i mean let us old time truck drivers have some credit.