Will a tune fix this?...
Thread Starter
Instructor
Joined: Feb 2005
Posts: 185
Likes: 0
From: IL
Will a tune fix this?...
A4 w/ Borlas, 3.90s & TC (tuned after install), just installed LT Headers but NOT tuned yet... When I accelerate fast and then let up, the car makes a rumbling/"thunder like" sound.
Is this normal?
Will the tune fix this?
Is this normal?
Will the tune fix this?
Drifting
Joined: Oct 2003
Posts: 1,624
Likes: 0
From: Chattanooga Tennessee
St. Jude Donor '08-'09
Originally Posted by Monster231
Probably not, Do you have an X pipe, those tend to smooth out some of the burbles and pops.
augydog
Race Director
Joined: Jun 2004
Posts: 19,459
Likes: 48
From: Schaumburg IL
CI 7-8-9-11 Veteran
St. Jude Donor '06-'10, '13
Originally Posted by 1999 Vette
A4 w/ Borlas, 3.90s & TC (tuned after install), just installed LT Headers but NOT tuned yet... When I accelerate fast and then let up, the car makes a rumbling/"thunder like" sound.
Is this normal?
Will the tune fix this?
Is this normal?
Will the tune fix this?
so long as you have no codes and there is no hesitation or something like that youre probably okay. That is just the result of having a more free flowing exhaust. 
Race Director
Joined: May 2004
Posts: 16,667
Likes: 1,209
From: Raleigh, NC
St. Jude Donor '15
Mine does the same
Somebody once mentioned in a thread like this that you could change something in a "deceleration fuel table" and get rid of the popping noise, but I have no idea if they were just talkng out their @$$ or not
Somebody once mentioned in a thread like this that you could change something in a "deceleration fuel table" and get rid of the popping noise, but I have no idea if they were just talkng out their @$$ or not
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