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Et gains, cat delete, versus longtube ane offroad pipe?

gregsdart

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I am considering two options to increase power on my 2019 a10 pp1 GT. I ran 11.903 at 119.13 with stock tires, a lund flex fuel tune and e85 at 1501 DA.
My next step will be exhaust mods. So i ask about gains from offroad pipe( remove cats) or a full Texas Speed 1 7/8 lt catless setup. Either setup will be hooked to stock resonater and active exhaust. I may add some dumps for the track. I will be running 305x45x17 MT ET Street R for traction. How much ET and mph difference?
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Manny84

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I recently went catless on my 17 m6. I had vmp do a tune revision for it and it feels like I gained more hp. I also did a 2 dyno pulls back to back and put down 440/390. Car does feel like it has more pull to it. I do not have headers. But i have a xpipe pmas and 18 mani.
 

Skyrm_da

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I am considering two options to increase power on my 2019 a10 pp1 GT. I ran 11.903 at 119.13 with stock tires, a lund flex fuel tune and e85 at 1501 DA.
My next step will be exhaust mods. So i ask about gains from offroad pipe( remove cats) or a full Texas Speed 1 7/8 lt catless setup. Either setup will be hooked to stock resonater and active exhaust. I may add some dumps for the track. I will be running 305x45x17 MT ET Street R for traction. How much ET and mph difference?
greg, id toss on an x pipe in place of that resonator, it will free up some weight and add nicely to the sound. My base 19 A10 car with stock headers, x pipe to dumps, Lund e85 tune, and a drag pack runs 7.23 @ 98 and went 11.43 & 124mph in horrible air.
 
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gregsdart

gregsdart

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greg, id toss on an x pipe in place of that resonator, it will free up some weight and add nicely to the sound. My base 19 A10 car with stock headers, x pipe to dumps, Lund e85 tune, and a drag pack runs 7.23 @ 98 and went 11.43 & 124mph in horrible air.
Thanks SKYRM! That is exactly the feedback i was looking for! Do you have a date time and racetrack info so i can check Density online for weather data? Much appreciated!
 

Skyrm_da

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Thanks SKYRM! That is exactly the feedback i was looking for! Do you have a date time and racetrack info so i can check Density online for weather data? Much appreciated!
heres the 1/8 slip and dragy info. It was roughly 10pm 66 degrees, 425ft elevation, and 1624 DA.

E517D16E-E0C8-497F-93C4-CBB6F90FB4A8.jpeg


6D43ABCE-C9ED-46E0-A3AC-1DF521439680.png


9E4260DE-DE0E-4FB6-A8C0-5A7583218F92.png
 

Stephen@lethal

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You will definitely pick up a few mph and 2 tenths or so with a catless setup with headers. 100% worth it. Hit me up if you'd like me to get you a price on a pair. Lethalperformance.com
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