Performance numbers for '15 5.3

[scottie350]

Hey guys, after doing a bunch of lurking and googling, I've found some stuff about what I'm asking. The most significant but almost unbelievable being long tubes, hi flow catted y pipe, intake, catback and custom tune putting down 50 extra rwhp on the dyno. The video is on YouTube of them doing the pull. But they could've cam swapped or something to get that.

 

Anyone point me to some dynos? Have shop getting me final price on kooks or afe headers and catted custom y pipe all to mate up to the Flowmaster Outlaw catback I have installed. And considering lew or BB for tuning eventually. Just trying to weigh out power vs dollar and how worth the cost it'll be.

 

 

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[07Softail]

I don't think 50 hp/trq can be gained from bolt-on's but I have been proven wrong before and i'm sure someone will chime in with real world proof.

 

RT

[scottie350]

This was my thoughts..more so I could see maaaybe full bolts and custom tune..but still that's a stretch...then again my car seen 20hp on a custom tune without mods..so depends on factory calibration I suppose

 

Realistically if it's only a net of like 20 hp on a v8 I'll just go forced induction. 7 grand Canadian for 120-150 whp trumps 3 grand and 25 hp lol

 

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