Young_Gun

Personally I think louder is better but my vote is that you get some resonators and Flowmaster American Thunder exhausts

Wade281

I just found on another forum that 2010 Mustangs did not come with resonators. I guess I'll have to just crawl under it in the morning to see.

Nuke

You're simply not going WOT often enough.

JCON

+1

I love low gears so I can hear my exhaust more without speeding to heavily

homershoots

I have slp loudmouths on mine and it's fairly quiet off throttle but on the gas it sounds semi loud. I think the cm plates need to be deleted though. Sometimes the exhaust doesn't sound the same and I'm betting they have something to do with it.

I'm just waiting on the nice folks at the IRS to send me some extra spending cash and I'm going to get the cm deletes a tuner and do the hotrod cams. Hopefully that will do the trick!

Wade281

I appreciate the comments. At this point I'm thinking the cats are the problem. Has anyone put in high flow cats on a 2010 and still been able to pass emissions testing in Texas? I was all set to order a set until I found that you cannot buy MIL eliminators for s197s. I have found that you can make your own, but I'm hesitant to try this. What are your thoughts?

DTMR

Im in jersey and here they are cat-***** and the SLPs didn't through any lights on for me as long as you get it tuned right. I hate these laws. car *****

Wade281

I'm with ya on those laws. That is good to know about the SLPs. Thanks for the info.