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http://www.youtube.com/watch?v=IWCcEtYUow8




X-Pipe $209.95
http://www.lethalperformance.com/201...x-pipe-p-37678


H-Pipe $209.95
http://www.lethalperformance.com/201...h-pipe-p-37679

We finally found the time to mock up an offroad x and h pipe for the 2011 3.7L V6. We've seen how well they work on all of the previous model mustangs so why wouldn't it work on the 2011 v6?

When I first started talking about this on some of the forums several members questioned it. However I said to myself this is a 305hp car. Removing the cats has to show some gains.

So we headed off to Power by the Hour in Boynton Beach, FL where Jake and crew helped with our testing. The test car was a 2011 V6 with the automatic transmission and 93 octane. Our first 2 baseline runs yielded us only 224rwhp and 245rwtq. Definitely lower HP than I thought it would make but the TQ looked good. Keep in mind that the auto trans typically makes less then a manual car does. That's just part of the drivetrain loss associated with the auto trans.

After the baseline runs were done we let the car cool down and did the swap over to our 2.5" offroad X-pipe. Just like the stock midpipe our offroad midpipe is 2.5" all the way back and necks down to 2 1/4" where it mates to the stock overaxle pipes.

We put the car back on the dyno and ran it again with the stock calibration. Both runs showed an increase of 14 and 16rwhp. Torque increased by 5rwtq on each run.

We then flashed the car with an SCT X3 loaded with a custom tune from our tuner Jon Lund. Ran the car again 2 times and the car picked up another 5-6 rwhp making the total gain for the offroad x-pipe and tune around 20rwhp.

Then it was time to ditch the closed stock airbox for one of JLT's cold air kits. The installation of the intake was a breeze. JLT's air kit goes together in minutes and fits perfect. It had all of the connections needed for the PCV and came with high quality silicone hose couplers. Swap the stock maf sensor over and bolt the heat shield in and you're done.

JLT's intake doesn't require a tune however Jon Lund put together a tune he believed would work best for the intake and offroad pipe.

We made a few more pulls and were pleased to see a 28-30rwhp increase over stock.

Not bad for a few hundred dollars worth of mods. Not only did we pick up some respectable rwhp and tq the car sounded much more aggressive with the catless pipe.

For anyone interested in the Lethal Performance offroad x-pipe/h-pipe for the 2011 V6 please visit our website Lethal Performance, Performance parts for Ford Mustangs or just give us a call and we'll be glad to assist you.

Make sure to check out our Facebook page as well and "LIKE" us to see more info and dyno sheets of our testing.

Thanks for all of your support![/quote]

toledo5189

Awesome! Looking forward to getting the X-Pipe down the road. Are there any plans to install the American Racing Headers at some point?

ufstang

I notice that on your website it says that a tune is needed for this. Is that only to eliminate an O2 sensor error or for reasons more complicated? Cause I notice you ran this on the dyno without the tune initially, so Im just trying to figure out if this is a $210 purchase or a $210+tuner(~$300) purchase.

Love the results by the way and plan on picking one up from the shop on friday if everything goes as planned.

hogasswild

I like the idea, but need my cats. Too bad we can't get like 10hp more with a similar setup that includes cats.

tigercrazy718

i want to hear what the car sounds like without all the dyno noise and a full exhaust, considering all the catless 4.0s sounded like complete trash