2.5" or 3" exhaust?

[MBRP Tech]

Originally Posted by AquaSSRS

Guys need some help!

I will be putting on an exhaust soon and need help deciding.

I am really interested in the Solo Mach-X kit and it sounds great on the clips. My only concern is that it is a 2.5" kit. I currently don't have SC or other mods (besides CAI), but may do a SC a couple years down the line. Just don't wanna get this kit and if I do a SC need to do a different exhaust because not enough flow.

Any input on hp limits of 2.5" compared to 3" would be great?

You don't loss hp with a 3" system...we tested orginally a 2.5" system and found that 3" built better hp and tq overall so that's the reason we built the L99 and LS3 cars with the 3" system.

We also had independent dealers and customer test as well finding the same as we did.

We tested on completely stock cars as well...no intakes, programming, etc. Our system is a complete bolt on cat back.

[ddunerider]

Originally Posted by axis

409S is considerably cheaper than 304SS. It all depends on what you want. Most of the higher priced systems are 304. You can google the differences between the two steels.

Really Didnt notice it ....its under the car sound bad ass and still have money left over for a shifter and a intake!!!

[Granatelli]

http://www.camaro5.com/forums/showthread.php?t=69838

Check out this new system we are releasing - This is an all hand polished 304SS 2.5 system with rolled stainless 4" tips