Borla ATAK observation

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May 26, 2016 | 10:30 PM

Stingray Al

Thread Starter

Burning Brakes

Joined: Sep 2013

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From: Mountaintop PA

Borla ATAK observation

I have the Borla ATAK on my auto Z51. The exhaust sounds great. However, when the car goes in and out of V4 to V8 mode I can hear the valves in the exhaust opening and closing. It sounds link a metallic "clink".

Also, no check engine lights

Is this normal???

Thanks
Al

Last edited by Stingray Al; May 26, 2016 at 10:32 PM.

May 29, 2016 | 09:37 AM

Stingray Al

Thread Starter

Burning Brakes

Joined: Sep 2013

Posts: 828

Likes: 40

From: Mountaintop PA

Ttt

May 29, 2016 | 11:15 PM

robert miller

Team Owner

Joined: Jan 2007

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From: cookeville tennessee

ttt

Must be mine does the same thing. Love it in S & TR mode... Robert

May 30, 2016 | 07:37 AM

Stingray Al

Thread Starter

Burning Brakes

Joined: Sep 2013

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From: Mountaintop PA

Thanks.

I like it too. Just the "clink" noise is s little anoying

Al

May 30, 2016 | 07:55 PM

robert miller

Team Owner

Joined: Jan 2007

Posts: 29,066

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From: cookeville tennessee

Quote:

Originally Posted by Stingray Al

Thanks.

I like it too. Just the "clink" noise is s little anoying

Al

Jun 9, 2016 | 12:38 AM

Jet Vet

Pro

Joined: Jun 2015

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From: New Orleans LA

St. Jude Donor '15-'16

I have a '15 Z51 A8 with the Borla ATAK, but I have installed a Diablo Tune (DiabLew Tune, actually) and the V4/V8 function is disabled. Problem solved!

JV

Jun 9, 2016 | 08:42 AM

Jack Be Quick Racing

Pro

Joined: Apr 2013

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From: Detroit area and Nashville area What day is it? Between MI & TN

I have same but with stick - yes, I can hear the valves (sometimes) moving when it goes between mode, however, I have heard in the stock NPP as well.

I done generally run in anything but Sport or Track and I've set the exhaust mode to Track full time - however - I recently pulled fuse 42 to keep all valves open at low RPMs and I really like that!

Jun 9, 2016 | 11:08 PM

Stingray Al

Thread Starter

Burning Brakes

Joined: Sep 2013

Posts: 828

Likes: 40

From: Mountaintop PA

I disabled the v4 mode with my Diablo Tuner, pulled fuse #41 and I still hear the valves opening and closing!!!

Am I hearing the (rear) NPP valves or the (forward) v4/v8 valves???