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      02-03-2012, 11:31 PM   #1
blackbeast535
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Secondary Cat Delete & Dinan Rear Exhaust - Video & Pics

I looked at more expensive Challenge & Fabspeed X-Pipes with the secondary cat delete but decided to just remove the secondary cats on the factory mid section.

Itís amazing how such a small mod makes a huge difference in sound & power.

Sure the primary cat delete makes more power but the secondary is still restrictive. Once I drove the car I immediately noticed the car pulls harder, shits seem crisper (6 MT) and the damn thing just screams above 3K rpmís. Still no drone with the Dinan rear section but the car is noticeably louder then before under acceleration.

Here are a few pics & video from the install.

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Dinan Rear Exhaust, Secondary Cat Delete, Dinan High Flow Carbon Fiber Intake, IND Painted Reflectors, BMW Edition Grills
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      02-03-2012, 11:45 PM   #2
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WOW Sounds really good looks great too! Wish Dinan would get all 4 pipes goin!
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      02-04-2012, 01:05 AM   #3
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sounds really nice, good job.
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      02-04-2012, 10:32 PM   #4
e92Mjunky
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well done, looks quality
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      01-11-2014, 07:30 PM   #5
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I'm guessing this throws a code?
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      01-16-2014, 10:17 AM   #6
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Cool stuff, I am gutting a complete OEM system to see how it sounds. Should be interesting.
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      01-16-2014, 01:08 PM   #7
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Any pictures of the inside of the secondary catalysts?
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      01-16-2014, 09:44 PM   #8
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Quote:
Originally Posted by swifty View Post
I'm guessing this throws a code?
Why??? The O2 sensors are between the primary and secondary cats.
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      01-16-2014, 11:37 PM   #9
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Sounds good OP

Quote:
Originally Posted by STi_traitor View Post
Cool stuff, I am gutting a complete OEM system to see how it sounds. Should be interesting.
I've been thinking about doing this myself. Looking forward to your review.
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      01-17-2014, 04:20 AM   #10
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Quote:
Originally Posted by Bx Tpr View Post
Sounds good OP



I've been thinking about doing this myself. Looking forward to your review.
Wasn't planning on a review but I guess it wouldn't hurt because I have two axle backs (ACM Style & OEM) to compare with the OEM catless (resonators included) exhaust.
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