im planning to order my fm super 44/or 40'sseries soon..is it worth gettn them..alotta people rec them,so im just checking so i wont waste my money...gettin my ex sys fabd,so i guess im expecting a 10-20 hp gain...
tell me what yall think

 

I have the 40 series and i love them. Great sound, and woke up the car quite a bit

 

i don't think your gonna get 20 hp[8D] mabey 5 at the most. if u have a CAI you might get 7 or 8

 

just get Force proseries mufflers or Thrush 2 chamber mufflers from www.summitracing.com
part#'s
force Proseries FRC-5202 2.5", FRC-5201 2.25"
Thrush WLK-17659 2.5", WLK-17658 2.25"

both are identical to Flowmaster 2 chambers as far as design. i like Forces for sound and IMO better quality than Flowmasters. i have heard the new Thrush 2 chambers on a 3.8 recently. sounded real good like Forces and Flow 40's

Flowmaster$70/muffler
Force Proseries$36/muffler
Thrush 2 chamber$30/mufler

it's your money spend it like you want but the flowmasters will not give you any better sound than theless expensiveForce proseries and Thrush 2 chamber. and i used flow 40's for a few years on mine. loved them but for the price the Force and Thrush are alot better and wiser buy

 

You will see those kind of gains if you get longtube headders, but if you stay with the stock manifold's expect roughly 6-10hp with better gas mileage.

 

Very generous aren't we

You don't need an xpipe, or hpipe, or any mid pipe!