Down pipes?

[mybigsho]

I have been tossing around the idea of installing down pipes on my 2016 sho.. The questions I have
can I run with stock exhaust back and are the gains worth the price.. I see they say 15 to 20 hp.. Any
real info on your gains would be appreciated... I am tuned by lms and its a non pp..
Thanks..

 

[Livernois Motorsports]

Yes, stock cat-back is perfectly acceptable as the real bottleneck is in the downpipe section of exhaust. I'm sure others will chime in as well
regarding this, but if you have any other questions, feel free to ask without hesitation.

 

[StealBlueSho]

Yes, stock exhaust is perfectly fine with aftermarket down pipes. A lot of guys run that setup because they don't want the aftermarket exhaust sound...

 

[BamSHO]

Running pretty much stock cat back on my 2013, its actually the complete system off my 2012. I have the 3rd cat delete and Dynomax mufflers.

 

[mybigsho]

Thanks for the reply's.. I'm looking for every 10th when I go to the track without taking away the DD duties.. Nothing
like jumping in your DD going to the track and having fun..

 

[BamSHO]

Both the 2012 and 2013 saw a full season of racing, but understand. Tune will help to with exhaust tone. When I brought home my 2013 home with the 2012 exhaust including the DP’s, it sounded horrible, especially the rasp, still was on stock tune file.

 

[ridered74]

I just put downpipes on 2 or 3 weeks ago, the rest of my exhaust is stock. Sound wise, I don't notice a difference at all. If you do them yourself, make sure you have PB Blast, it makes a world of difference.

 

[aurmend]

Now, Down Pipes with cats or without cats

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[BamSHO]

I would go with catted.

 

[StealBlueSho]

dynos are showing a 1-2 HP reduction for having high flow cats vs non-catted... not worth getting caught with without cats for very little difference in power..

 

[10bird]

I am going with catless. I am not going to pay 20% more for less power.

 

[aurmend]

I am going with catless. I am not going to pay 20% more for less power.

Maybe weld on some resonators where the cats are supposed to go.

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[yo tony]

I went catless. No smell or anything. Huge pain in the ass to install. Picked up about .15-.2 tenths in the quarter. I'd go meth before the dps.

 

[mybigsho]

I went catless. No smell or anything. Huge pain in the ass to install. Picked up about .15-.2 tenths in the quarter. I'd go meth before the dps.

I would do the catted version.. Did you pick up almost 2 tenths or 2 hundreds? If its two hundreds not worth it..

 

[BamSHO]

2 tenths.

 

[mybigsho]

2 tenths.

Wow!! Looks like I'm installing down pipes..

 

[yo tony]

Meth was a half second and half the price

 

[BamSHO]

Have a plan and budget for mods. I did all mine in steps. First tune, thermostat, then downpipes, and now installing meth.

 

[yo tony]

That's how I went but mine was more so when the wife was agreeable

 

[Jeff2017]

I have been tossing around the idea of installing down pipes on my 2016 sho.. The questions I have
can I run with stock exhaust back and are the gains worth the price.. I see they say 15 to 20 hp.. Any
real info on your gains would be appreciated... I am tuned by lms and its a non pp..
Thanks..

How much are down pipes?