Magnaflow vs Flowmaster
#21
Originally Posted by bullet3z
Magnaflow states on their website that the single 3" in and single 3" out cat back system makes more power than the dual out version. I have the single out system and even though they say it is stainless steal it is starting to rust. 

How quickly did yours start to rust? And how severe are your winters (including the salt factor)?
Thread
Thread Starter
Forum
Replies
Last Post
FlowmasterMufflers
Ford Engine & Exhaust Performance
1
Nov 24, 2015 01:00 PM




