I am considering purchasing the Magnaflow Hi Flow Cats and X pipe assembly. I can't seem to find any reliable information about this mod.

My questions are:

• Is this a "sound" mod only, or are there any noticeable gains?
• If there are any gains, how much?

Thanks all... info appreciated.

 

I don't have it but my friend does. He dropped his car off at Steeda and the Magnaflow system was just one of the mods he had done. According to Steeda the system will give your somewhere around 10 HP (give or take eitherway)

Can't gage off of my friends based on he had a S/C, CAI, Tune and the exhaust on....gained alot more then 10HP