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      02-29-2020, 12:50 AM   #1
kani179
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Replacing primary vs secondary catless DP

What's up guys.

What's the difference between changing the primary dp vs the secondary dp as far as sound, power, gas smell ?

Thanks
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      02-29-2020, 06:49 AM   #2
JBA87
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My understanding primary adds most power but throws cel, and secondary creates the gas smell for a little extra power but no CEL
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      02-29-2020, 11:31 AM   #3
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Quote:
Originally Posted by JBA87 View Post
My understanding primary adds most power but throws cel, and secondary creates the gas smell for a little extra power but no CEL
Got it thanks!

I herd that replacing the primary makes the car sound more raspy and the secondary keep the original tone but increases the volume.
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      02-29-2020, 08:51 PM   #4
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Here,

- Primary only gives you loudness, CEL. No smell still.
- Secondary only gives you loudness. No CEL and no smell.
- Primary and secondary, gives you everything.

I don't mention power gain since they are close enough and there is no data on which makes more or less.
All just butt dyno that doesn't have a display screen or printout capability.
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      02-29-2020, 09:53 PM   #5
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Quote:
Originally Posted by r33_RGSport View Post
Here,

- Primary only gives you loudness, CEL. No smell still.
- Secondary only gives you loudness. No CEL and no smell.
- Primary and secondary, gives you everything.

I don't mention power gain since they are close enough and there is no data on which makes more or less.
All just butt dyno that doesn't have a display screen or printout capability.
Sounds about right!
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r33_RGSport12991.50
      03-01-2020, 01:52 AM   #6
kani179
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Quote:
Originally Posted by r33_RGSport View Post
Here,

- Primary only gives you loudness, CEL. No smell still.
- Secondary only gives you loudness. No CEL and no smell.
- Primary and secondary, gives you everything.

I don't mention power gain since they are close enough and there is no data on which makes more or less.
All just butt dyno that doesn't have a display screen or printout capability.
Oh ok ! Understood. Thanks for the input.
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