best mods so far...

[ACHUN717]

Sounds good, but doesn't sound really aggressive. Might just be the recording. Nothing sounds better then hearing in person.

Yea I agree. I've tried so many mufflers and this by far sounds the deepest and most "V8" Lol and it's a relatively cheap muffler..same price as magnaflow and flowmaster, but much better quality!

 

[89Suburban]

nothing..its optional to set up an APP on your phone to track diagnostics, but I didn't bother.
You literally just install it and that's it...never need to touch it again unless going to dealer for service.
I just plugged it in and am enjoying the benefits. The price is really great too and they ship crazy fast!

Wondering if it affects emissions testing and readiness monitors for those of us that have to deal with it.

 

[ACHUN717]

Wondering if it affects emissions testing and readiness monitors for those of us that have to deal with it.

don't think it does. you can just unplug it whenever you need any testing done. and plug it back in after. I live in California and was worried about CARB compliance, but it's not an issue.

 

[89Suburban]

don't think it does. you can just unplug it whenever you need any testing done. and plug it back in after. I live in California and was worried about CARB compliance, but it's not an issue.

I would unplug it a week in advance and do some drive cycles just my humble opinion I go through this every year here in my old '07 Hoe have to get that test done Monday as a mater of fact.

Which means I have to do the same and at 360K driving with the AFM engaged really scares the hell out of me even for a few days.

 

[Doubeleive]

don't think it does. you can just unplug it whenever you need any testing done. and plug it back in after. I live in California and was worried about CARB compliance, but it's not an issue.

not for about 7-8 years anyway..... lol