Long tubes installed tune help

[Deadmau5]

I have Lund flex tune and just installed headers . do I need to get ruetunes for headers or will the felx tune adjust properly ?

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[Varekai]

No you don't need a retune.

 

[2015 Silver GT]

Correct no retune is needed.

 

[Schu]

Do some data logs and have Lund take a look if you are worried...

 

[16FordGTPP]

I also had this question but John said I was good, he said send him some logs and he'd have a look for me. Everything checked out satisfactory so you should be fine.

 

[Deadmau5]

do any of you guys hear a hiss noise when under light load and decelerating ? that's all I'm hearing power feels fine car just smells like crap and that annoying hissing noise.

 

[Chameleon]

Could be an exhaust leak.

 

[Joe 5.0]

do any of you guys hear a hiss noise when under light load and decelerating ? that's all I'm hearing power feels fine car just smells like crap and that annoying hissing noise.

Could be an exhaust leak.

^+1

The hiss noise could be an exhaust leak somewhere. Not a big deal, but get it checked out.

As for the smell, I'm going to take a guess and say that you installed off-road headers. When you remove the catalytic converters, you're not filtering out the contaminant so the exhaust will smell!

 

[zaquhree]

Did you do the install or a shop?

 

[Sick03L]

do any of you guys hear a hiss noise when under light load and decelerating ? that's all I'm hearing power feels fine car just smells like crap and that annoying hissing noise.

That noise is normal for catless long tubes.... learn to live with it.

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