Noise from Exhaust when shifting....

[gwpsvt]

I have a new Lightning and when I am standing all the way on it from a dead stop ,when it shifts from first to second a noise comes out of the exhaust. It sounds like the motor powers down a little and is sucking back air ,like the exhaust on my old standard pickup when I would push in the clutch between gears.

Is this normal? Can anyone tell me what this is?

GWPSVT

 

[Rd Rash]

Does it sound like the truck is farting
That is normal.
It is called tourqe reduction and 4 cyclinders are dropped during the shift.
You need a chip to fix that.

Mike

 

[gwpsvt]

Yeah It does sound like a fart and I have noticed that it sounds off more often. Thanks for the reply.

I have a chip,filter kit and throttle body from JDM on the way.

 

[HAMMRHEAD]

Damn that's funny. As soon as I read the question my answer was gonna be ' Does it sound like a fart?' , but you guys already beat me to it.:cryying: It's normal.