New from Lethal Performance: 1-7/8" x 3" American Racing Headers, X pipe and H pipe!!

[Derek@Lethal]

Now available from Lethal Performance is new systems from American Racing Headers for your Shelby GT350!

Currently, only "Long" systems are available, and what that means is that this kit includes it's own crossover pipe (available in X or H, catted and off road), some length of tubing and stops at the rear axle to connect to the stock active mufflers.

These headers are built special for the GT350 using .065" wall tubing, thicker than the standard stuff they use on other applications to withstand the heat associated with high revs/power as well as any vibrations the Voodoo motor may produce.

Let us know if you guys are interested in a set of these headers and mid pipe, we'd be glad to assist you! :cheers:

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[Cardude99]

Any dyno numbers?

 

[CliffClavin]

Any issues with CEL's on these?

To be a bit more descriptive, I'm assuming these require a tune. Does the current tune turn off the rear O2's? If not, has this thrown a CEL?

 

[Derek@Lethal]

A custom tune is required any time you install long tube headers and/or remove the factory cats.

 

[Derek@Lethal]

Any dyno numbers?

Those will be available very soon. ARH is expecting 20+ rwhp on the factory tune.

 

[nastang87xx]

Any issues with CEL's on these?

To be a bit more descriptive, I'm assuming these require a tune. Does the current tune turn off the rear O2's? If not, has this thrown a CEL?

Removing factory cats will ALWAYS throw a CEL for catalyst under efficiency, even with high flows. The only time it might not is with Kook's Green Cats and they're hella expensive.

 

[xt6wagon]

So, ceramic coating?

optional resonators?

 

[G-FORCE]

Any sound clips with H pipe vs X? Cat-less X on my 09 WHIPPLE GT500 is way too raspy. It also lost low end torque by the butt-o-meter.

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