Sold Sold Sold . Modified Bullet Catback: 1- Hinged on the axle (doesn't hit the differential or chassis) and doesn't cause issues if you're hauling or at stock height. - 2- I modified the muffler by adding an extra silencer besides the original one for the back pressure issue known with Bullet mufflers. The original silencer is small. Now I can accelerate (and the muffler is closed normally) with absolutely no back pressure after the additional silencer. - 3- Note: I added a new modification by installing a large silencing muffler after the small resonator muffler so that when the sound is turned off, it silences completely like the stock one with no back pressure. - The catback is intact with no leaks, and the muffler and valve are intact. - The price is by offer, and the catback cost me a lot to reach this excellent result. The reason for selling is switching to an X-pipe. - Any offer below 2500 will not be considered. . . . . GMC Sierra catback bullet catback max power maxpower x super blurkit blur cat star power jspower maxpower star power blurkit bullet bolt y pipe x pipe Silverado Sierra f150 bullet muffler Corsa Corsa muffler bullet headers long headers short headers x-pipe American racing kooks catback btm xforce fox borla attack