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what size X pipe does the 2015 use?

vicj

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I recently bought a 2.5 inch x pipe from Summitt. I think I read somewhere after the fact that it should be a 3 inch x pipe? Anyone know for sure before I schedule an appointment to install?
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MELLOWYELLOW06

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I think factory pipes are 2.5 inch

Aftermarket systems bump up to 3" pipes so their x will be 3"

Just had mine installed the other day.

 
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cbrtrx

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Factory exhaust is 2.25" from the manifold to the mid resonator with a small flex pipe that necks down to less the 2" on one side, after the resonator its 2.5" to the rear mufflers.
 

5PointMoe

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I ordered the same thing from summit, Some of my friends tell me summit makes good parts. Did you see how they had two different x pipes one was cheaper the other one was 30 bucks more.
 

Rubedog

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2.5x is perfect, that's what I bought and already installed.
 

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5PointMoe

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the summit racing one right the 2.5 inch x pipe? How does it sound? you got a video clip? Feel any gains. I have a custom muffler delete done too lol.
 

rio16

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the summit racing one right the 2.5 inch x pipe? How does it sound? you got a video clip? Feel any gains. I have a custom muffler delete done too lol.

heres one of the videos from one of the guys from the forum...



[ame="[MEDIA=youtube]trbjmwD3d7s[/MEDIA]"]
 
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vicj

vicj

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2.5x is perfect, that's what I bought and already installed.
Thanks for all the feedback..... Glad to know the 2.5 works!! :thumbsup:
 

VTECSAUCE

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the summit racing one right the 2.5 inch x pipe? How does it sound? you got a video clip? Feel any gains. I have a custom muffler delete done too lol.
Gains? I keep seeing that full catbacks don't make more than 3whp over stock. I honestly don't know what to believe, however, I have yet to see dynos of just catbacks installed.
 

Tommy V

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Look in the sw thread i did a before and after dyno and posted the results.385 HP 358TQ just the magnaflow comp catback 3 in it made 2 hp and 4 tq thats it.Dynojet sae corrected on both runs.I really thought the catbacks would atleast make 10 hp but i was wrong and that dont happen often lol.
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