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*NEW* Stainless Works 1 7/8th Headers for GT350 NOW AVAILABLE!

Chris@Lethal

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New from Stainless Works Performance is their 1 7/8th header system with off road connection pipes for the GT350!

Fits factory connection point to the vehicle’s factory exhaust. No-kinks CNC mandrel belt pipes give a boost of power and longevity with our Lifetime Warranty on their beautiful 304 stainless steel. This system will give you a peak gain of 22+ RWHP and 18+ TQ.

(Direct Link)

http://www.lethalperformance.com/stainless-works-2015-2017-shelby-gt350-1-7-8-header-system-w-off-road-lead-pipes.html





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superman07

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track headers? why not show the entire curve? I think this is also with the tune they did on their test car right?
 

autobahnGT350

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New from Stainless Works Performance is their 1 7/8th header system with off road connection pipes for the GT350!

Fits factory connection point to the vehicle’s factory exhaust. No-kinks CNC mandrel belt pipes give a boost of power and longevity with our Lifetime Warranty on their beautiful 304 stainless steel. This system will give you a peak gain of 22+ RWHP and 18+ TQ.

(Direct Link)

http://www.lethalperformance.com/stainless-works-2015-2017-shelby-gt350-1-7-8-header-system-w-off-road-lead-pipes.html





Looks like their could be potential as a complete "system";however, what is the HP gain with headers alone? What CAI was used to give you these numbers?

I would be interested in seeing the after header install power curve prior to any tune or CAI.

Looks like a nice header system. How does it affect the "Shelby"sound?
 

Helmet

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quote=autobahnGT350;1684887]Looks like their could be potential as a complete "system";however, what is the HP gain with headers alone? What CAI was used to give you these numbers?

I would be interested in seeing the after header install power curve prior to any tune or CAI.

Looks like a nice header system. How does it affect the "Shelby"sound?[/quote]

I think it sounds bad ass WOT. Go to their web site they have a before and after video.
http://stainlessworks.net/
 

GTBOB

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Cheese and rice, did you hear that thing in track mode?!?! :hail::hail::hail:
 

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superman07

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Honestly, getting 20-30 hp without cats and with a tune is horrible for long tubes on this car. I hope they can clear it up.

off road pipes give 9hp pretty consistently. Canned Lund tune good for 10-20 on 93. Without more clarification these seem to be less effective than Kooks, and especially the ARH.
 

Nataphen

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Looks like a catted header system was tested there. The baseline was stock with stock tune.
 

jtn83

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Honestly, getting 20-30 hp without cats and with a tune is horrible for long tubes on this car. I hope they can clear it up.

off road pipes give 9hp pretty consistently. Canned Lund tune good for 10-20 on 93. Without more clarification these seem to be less effective than Kooks, and especially the ARH.
Looks like a catted header system was tested there. The baseline was stock with stock tune.
I agree, the gains seem a little low. Can anyone confirm if the car in the video (and on the dyno) had the catted or O/R version? Disregarding the high baseline, 20HP from longtubes and a tune seems low considering what people are seeing with just a tune or just the Lethal O/R legs (and no tune).

Does anyone else have these installed that can speak to the gains/results? Surely there's more then one set out there...
 

chops44

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This does seem low...I've seen quite a few dynos where headers/Xpipe and a tune were worth 40-50 rwhp on 93 octane.
 

superman07

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They are running through stock x pipe, resonators, and mufflers where many other folks ran their long tubes through at least a better flowing x pipe, but still feels low for this engine.
 

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jtn83

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They are running through stock x pipe, resonators, and mufflers where many other folks ran their long tubes through at least a better flowing x pipe, but still feels low for this engine.
Hmmm, very interested to see how these would sound and perform matted to my corsa x-pipe. Just not 100% onboard with giving up the warranty when I do a tune.
 

08fordgt

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I was just looking at possibly getting these today. More clarification would be nice.
 

AndreiD

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Hmmm, very interested to see how these would sound and perform matted to my corsa x-pipe. Just not 100% onboard with giving up the warranty when I do a tune.
BUMP on this! Any updates?

Is a tune 100% mandatory? What if you leave stock software?
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