lethal offroad x

I recently installed my offroad x pipe on my 2012 mustang gt ive been running this pipe for aboutta week , all of a sudden now when i try to accelerate i get no response from my engine its like stuck when i try to accelerate & also when i accelereate it feels like it dies down like there is a...

* All items sold * Time to clear out some of the exhaust parts I've accumulated over the past 2-3 years. Parts list: 2011 - 2014 Lethal Performance off-road H pipe (stainless steel version). $355.00 shipped (continental US) + PayPal fee's (3%). *SOLD* 2011 - 2014 Lethal Performance...

TAKE 15% OFF 2011+ Mustang GT & GT500 Stainless Steel X- and H- Pipes!! Plus FREE Shipping ENTER Coupon Code: "STAINLESS" during Checkout and Receive a 15% Discount. VISIT Ford Mustang and SVT GT500 Performance Parts Specialists - Lethal Performance, or CALL 877-2-LETHAL...

I had an X on my previous 5.0 and like the raspy tone alot better so! Want to even swap an H for an X. Must be 3" just like the Lethal H Pipe I have now Would prefer to meet, swap, and head out. Don't wanna ship this thing. Located in Dickson, TN! Can meet in Murfreesboro, Clarksville...