FYI on exhaust systems - 2003-04 Mach 1 Registry Owners Club

AlloyPony · 07-18-2018, 02:43 PM

I currently have a Mac O/R H-pipe, but every other piece of my exhaust system is factory stock. It actually sounds really good and is pretty loud.

My question is, has anybody ever taken a Mach 1 factory muffler apart? I want to know if it's chambered or straight through perforated with packing. I'd like to gauge how restrictive it is. Also, I heard that the Mach 1 got a "specifically tuned" exhaust for this model. What was made different about it?

Main reason I'm looking into this is that my O/R H-pipe is 2.5" and my factory cat-back is 2.25" so I want to make it 2.5" all the way out the back by using an aftermarket exhaust kit. But, if the Mach 1 mufflers are actually really good then it may not be worth it.

ab_mach1 · 07-18-2018, 03:10 PM

Quote:

Originally Posted by AlloyPony

I currently have a Mac O/R H-pipe, but every other piece of my exhaust system is factory stock. It actually sounds really good and is pretty loud.

My question is, has anybody ever taken a Mach 1 factory muffler apart? I want to know if it's chambered or straight through perforated with packing. I'd like to gauge how restrictive it is. Also, I heard that the Mach 1 got a "specifically tuned" exhaust for this model. What was made different about it?

Main reason I'm looking into this is that my O/R H-pipe is 2.5" and my factory cat-back is 2.25" so I want to make it 2.5" all the way out the back by using an aftermarket exhaust kit. But, if the Mach 1 mufflers are actually really good then it may not be worth it.

You should make a video of your exhaust and post it on youtube. I've always thought the Mach's would sound great with the factory exhaust and just on off road H midpipe.

AlloyPony · 07-22-2018, 03:57 PM

Quote:

Originally Posted by ab_mach1

You should make a video of your exhaust and post it on youtube. I've always thought the Mach's would sound great with the factory exhaust and just on off road H midpipe.

Fast forward to 3:00 in this video

https://www.youtube.com/watch?v=UMx2itPDybA&t=109s

And 0:15 in this video

https://www.youtube.com/watch?v=P_M7A83XVb4

So does anybody know if the factory mufflers are straight through perforated core or chambered?

07-18-2018, 02:43 PM	#1
AlloyPony Registered User Join Date: Jan 2018 Location: Central Kentucky Posts: 161	Re: FYI on exhaust systems I currently have a Mac O/R H-pipe, but every other piece of my exhaust system is factory stock. It actually sounds really good and is pretty loud. My question is, has anybody ever taken a Mach 1 factory muffler apart? I want to know if it's chambered or straight through perforated with packing. I'd like to gauge how restrictive it is. Also, I heard that the Mach 1 got a "specifically tuned" exhaust for this model. What was made different about it? Main reason I'm looking into this is that my O/R H-pipe is 2.5" and my factory cat-back is 2.25" so I want to make it 2.5" all the way out the back by using an aftermarket exhaust kit. But, if the Mach 1 mufflers are actually really good then it may not be worth it. __________________ 2003 Mach 1 - TR3650 - Mac O/R H-pipe - Ford Racing driveshaft - Modified air intake - Nitto Motivo 315/35s on 10.5" FR500 wheels - Steeda clutch adjuster

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