At the Against All Odds pay-per-view event Sabin and Dutt were beaten by Chris Harris and James Storm (America's Most Wanted) in a bout for the NWA World Tag Team Championships.

[15] On March 11, Chris Sabin defeated Alex Shelley and Sonjay Dutt in a 3-way match to represent both the US in the "International X Division Showcase" at Destination X 2006 as well as joining Jay Lethal on Team TNA in the upcoming World X Cup Tournament.

[20] Prior to the match, Sabin showed signs of turning heel when he expressed his disdain for X-Division pioneer, and face, Jerry Lynn for doubting his focus in an interview with Christy Hemme.

[34][35] On the October 22 episode of Impact!, Sabin and Shelley won an Ultimate X match against Lethal Consequences to become the number one contenders for the TNA World Tag Team Championship.

[37][38] At Turning Point, The British Invasion (Doug Williams and Brutus Magnus) defeated Sabin and Shelley and Beer Money, Inc. in a three-way match to retain the TNA Tag Team titles.

[41] Sabin and Shelley received their title shot on the April 12 episode of Impact!, but were defeated by World Tag Team Champion Matt Morgan and Amazing Red, who replaced the injured Hernandez in the match.

[43] On July 11 at Victory Road, the Motor City Machine Guns defeated Beer Money, Inc. to win the vacant TNA World Tag Team Championship for the first time.

the Motor City Machine Guns defeated Beer Money, Inc. in a Two Out of Three Falls match to win the Best of Five Series and retain the TNA World Tag Team Championship.

[57] On December 5 at Final Resolution the Motor City Machine Guns defeated Generation Me in a Full Metal Mayhem match to retain the World Tag Team Championship.

[70] On April 15 at Lockdown, The Motor City Machine Guns unsuccessfully challenged Magnus and Joe for the TNA World Tag Team Championship in a steel cage match.

[75] On the July 5 episode of Impact Wrestling, Sabin returned to talk about his injury, but was interrupted and eventually attacked by TNA World Heavyweight Champion Bobby Roode.

[78] Sabin received his title shot on the May 16 episode of Impact Wrestling, but was defeated by defending champion Kenny King in a three-way match, also involving Petey Williams.

[83] The following week, Sabin defeated Bully Ray on the Destination X episode of Impact Wrestling, to win the World Heavyweight Championship, making him TNA's sixth Triple Crown Champion in the process.

[85] On August 15 at Hardcore Justice, Sabin lost the World Heavyweight Championship back to Ray in his first title defense, contested inside a steel cage, following interference from Mr. Anderson and Tito Ortiz.

[88] On October 20 at Bound for Glory, Sabin defeated Austin Aries, Jeff Hardy, Manik, and Samoa Joe in an Ultimate X Match to win the X Division Championship for a record-breaking seventh time.

In April 2008 Sabin and Shelley returned to ROH, losing to The Age of the Fall (Jimmy Jacobs and Tyler Black) and defeating the Briscoe Brothers (Jay and Mark) on the 18 and 19 respectively.

[92] In August 2008 Sabin and Shelley once again returned to ROH, wrestling Austin Aries and Bryan Danielson to a 25-minute time limit draw and losing to Kevin Steen and El Generico on the 1st and 2nd respectively.

[94] On May 8 the Motor City Machine Guns were defeated by the ROH World Tag Team Champions The Kings of Wrestling (Chris Hero and Claudio Castagnoli) via disqualification, when the Briscoe Brothers interfered in the match.

On January 4, 2009, Sabin and Shelley defeated No Limit (Tetsuya Naito and Yujiro) at New Japan Pro-Wrestling's Wrestle Kingdom III to win the IWGP Junior Heavyweight Tag Team Championship.

[107][108] On September 22, 2017, at Death Before Dishonor XV, The Motor City Machine Guns defeated the Young Bucks to win the ROH World Tag Team Championship for the first time.

[112] During the January 12, 2019 ROH television tapings, Sabin suffered a fully torn ACL during a six-man tag team match, with a forecast recovering time of eight to twelve months.

In August 2016, the Motor City Machine Guns returned to Japan, unsuccessfully challenging the Young Bucks for the IWGP Junior Heavyweight Tag Team Championship.

After defeating the Strong Openweight Tag Team Champions, Aussie Open on the September 15th episode of Impact!, Sabin and Shelley made their return to New Japan Pro-Wrestling at Rumble on 44th Street on October 28.

At the event, the duo defeated Aussie Open to win the Strong Openweight Tag Team Championships, in a three-way match, also involving The DKC and Kevin Knight.

[120] On April 15 at Capital Collision, the duo lost the titles back to Aussie Open in a three-way tag-team match also involving the team of Kazuchika Okada and Hiroshi Tanahashi.

[122] At Slammiversary, Sabin made his in-ring return from injury where he teamed with Alex Shelley to reform the Motor City Machine Guns, defeating The Rascalz after answering their open challenge.

At Bound for Glory, The Guns lost their titles back to The North in a four-way tag team match also involving The Good Brothers (Doc Gallows and Karl Anderson), and Austin and Fulton, ending their reign at 97 days.

[126] Following Bound for Glory, Sabin started teaming with James Storm for the next two months, defeating XXXL (Acey Romero and Larry D) at Turning Point on November 14.

[134] On the March 2, 2023 episode of Impact, The Motor City Machine Guns lost their titles to Bullet Club members Ace Austin and Chris Bey, ending their reign at 78 days.

[157] Harter plays bass in a band called The High Crusade, which also includes Petey Williams and Alex Shelley, and their friends Adam Tatro and Chris Plumb.