dyno'd today

Logan03

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all mods in sig
456rwhp/492rwtq 2.76 pulley
448rwhp/471rwtq 2.93 pulley
w/2.76 made more power and lots more torque throughout the curve. I am very satisfied. it was hot and raining also, so maybe when the weather is better it will make some more.
 

Poisonous Mods

little moddie
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:beer: :beer:

Thats some good numbers ur making.
Im sure if u go on the dyno in winter or when it really cools down u might just see better numbers.
 

trey193

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I didnt know Mac's offroad X pipe fit these cars!!! Aside from that great numbers for sure, I made 456 and 478 with my mods in the sig and a Diablo tune, how was your A/F ???
 

Logan03

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AF stayed around 11.9 from 3800-4600 then went down to 11.6 from there till 6400. the mac xpipe doesnt fit that well. i had to get rid of the studs and use bolts on the driver side. the stops on the studs didnt allow the pipe and manifold to seat properly.
 

trey193

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Yeah I have had to replace the studs on the drivers side with every X or H pipe I have put on 99 and up modular cars thats a given, but how does the Mac X fit as far as the tranny is concerned?? Does it hit anywhere at all, I was told it would not work on 03 Cobras?? Any info would be appreciated! Thanks Trey
 

Logan03

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doesnt hit anywhere at all. no probs with it at all. just that the flow catback doesnt fit to well. but other than that no probs. doesnt leak at all
 

trey193

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Logan did you specify it for an 03 Cobra???? Maybe they have a new part # for the 03's?????????? Once again great numbers!
 

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