FULL-TIME: Bristol City 0, Leicester City 4
Chris Wood returned to Ashton Gate to plunge Bristol City deeper into relegation trouble.
Leicester's new £2m signing from West Brom helped himself to a hat-trick inside 29 minutes in the first half to take his tally for the season to 17.
Wood helped the Robins avoid the drop during a loan spell in the West last season, but returned to The Hawthorns In May.
He scored 11 goals in 18 starts for Millwall to earn a big-money move to the King Power Stadium on New Year's Day, since when he has carried on where he left off.
Business Cards From Only £10.95 Delivered www.myprint-247.co.ukView details
Our heavyweight cards have FREE UV silk coating, FREE next day delivery & VAT included. Choose from 1000's of pre-designed templates or upload your own artwork. Orders dispatched within 24hrs.
Terms: Visit our site for more products: Business Cards, Compliment Slips, Letterheads, Leaflets, Postcards, Posters & much more. All items are free next day delivery. www.myprint-247.co.uk
Contact: 01858 468192
Valid until: Sunday, May 26 2013
The big striker overpowered his former team-mates as Leicester reaffirmed their promotion credentials.
This was as poor a performance as City fans have seen all season and the Ashton Gate crowd were quick to make their feelings known, booing their team at half-time and again at the final whistle.
Up against a porous defence that had conceded 50 goals in 25 games previously and still to keep a clean sheet this season, the Foxes needed just 12 minutes to forge a lead.
Ben Marshall picked out Wood's run in the left channel and the in-form striker cut inside James Wilson before beating Robins keeper Dean Gerken at his near post with a low shot from 12 yards out.
And the New Zealand striker added a second just six minutes later to put the visitors firmly in the driving seat.
Gerken flapped at a corner from Marshall, the ball bounced off Liam Fontaine and Wood was on hand to net his fifth goal in three games from close range.
French midfielder Anthony Knockaert failed to recover from a hefty challenge by Cole Skuse and was replaced by Lloyd Dyer on 20 minutes, but the change did nothing to hinder Leicester's progress and Marshall saw a shot deflected just wide.
City's best chance of a goal appeared to come from set-pieces and substitute Dyer was forced to clear an in-swinging Greg Cunningham corner off the line midway through the first half.
But that was as near as the Robins came to making a game of it and it came as no surprise when Wood completed his hat-trick four minutes before the interval.
New signing Liam Kelly stood off the big striker, whose low shot from the edge of the penalty area went through Gerken's hands and into the net to signal the end of the game as a meaningful contest before half time.
Robins boss McInnes made two changes at the start of the second period, sending on Paul Anderson and teenage debutant Wes Burns for James Wilson and Jon Stead, but without any noticeable effect.
Leicester continued to boss the game and Matty James, confronted by a back-pedaling defence in the 51st minute, smashed in a fourth goal from 22 yards out to heap further misery on the home fans.
Although many fans left early, those who remained greeted their team's first shot on target with ironic cheers in the 72nd minute, Kasper Schmeichel dropping to his right to gather in Anderson's effort.
City never gave up, but were comfortably kept at bay by opponents who were simply superior in every department.
CIty (3-5-2): Gerken; J Wilson (Burns 46), Fontaine, McManus; Foster, Kelly (80 mins), Skuse, Pearson, Cunningham; Stead (Anderson 46), Davies.
Leicester (4-4-2): Schmeichel; Da Laet, Morgan, Keane, Konchesky; Drinkwater, James, Marshall (Gallagher 74), Knockaert (Dyer 20); Nugent, Wood (Waghorn 63).
Referee: Oliver Langford (West Midlands)