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 BPS-Q vs MAC exhaust 
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Joined: Sun May 16, 2010 10:17 am
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Location: Madisonville, La
Post BPS-Q vs MAC exhaust
I've had a BPS Q on the back of my PD for several years now and it has started leaking around the muffler. The noise sounds like a valve tapping and is very annoying. I am planning on changing out the exhaust soon. I've been happy with the BPS exhaust and am not looking for a loud exhaust. I'm deaf enough without the extra help.

I have read a few comments on the MAC exhaust and had a few questions about them.

1. What is the cost compared to a BPS
2. How have they been holding up. I ask this because I know people with Marsh Mellow that are constantly replacing the bands.
3. Is it comparable in dB to the BPS?

Thanks for the input.


Mon Feb 23, 2015 4:42 pm
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Location: Thibodaux, La
Post Re: BPS-Q vs MAC exhaust
All performance exhaust is over priced. The Q is about 100.00 cheaper than the MAC.

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Mon Feb 23, 2015 4:48 pm
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Post Re: BPS-Q vs MAC exhaust
u will gain some bottom end and a lot of db's from the mac vs the Q


Mon Feb 23, 2015 4:53 pm
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Post Re: BPS-Q vs MAC exhaust
you guys can really see a gain in bottom end performance from an exhaust.

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Mon Feb 23, 2015 5:09 pm
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Post Re: BPS-Q vs MAC exhaust
on a stage 2 motor going from a Q to anything un baffled HELL yeah


Mon Feb 23, 2015 5:12 pm
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Post Re: BPS-Q vs MAC exhaust
The MAC even with baffles is still substantially louder then the Q. It does appear the MAC is built really well from what I have seen.

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Mon Feb 23, 2015 5:17 pm
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Post Re: BPS-Q vs MAC exhaust
Gut a stocker, save your money.

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Mon Feb 23, 2015 10:41 pm
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Post Re: BPS-Q vs MAC exhaust
Mac is well built. The unbaffled is extremely loud, but so is a gutted stocker

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Mon Feb 23, 2015 10:59 pm
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Post Re: BPS-Q vs MAC exhaust
Unless the 'Q' is really damaged, why not just have it welded up? (save the $$ for headwork)

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Tue Feb 24, 2015 5:03 am
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