A Chris Armstrong header consigns Brentford to their first defeat of 2004. The ex-Spurs striker pounced on a cross by Chris Llewellyn for his fifth goal of the season.
It was a tale of two halves, with The Bees the better team in the first, but struggled to cope with Wrexham's passing play in the second.
Wally Downes rested goalkeeper Paul Smith in view of his imminent departure, with Kevin O'Connor
and Jay Tabb re-instated to the side. The Bees could have taken the lead in the fourth minute, Jay Smith firing wide after Tabb's cut-back.
Alan Julian gave an excellent display, denying Armstrong on several occasions, not least in the 22nd minute from Carlos Edwards' shot. Just before half-time, Brentford nearly went ahead, Rougier's cross found Kevin O'Connor
free in the six-yard box, and his header was superbly saved by Andy Dibble.
It was a different Brentford side that took the field in the second half, with Wrexham looking more confident on the ball, finding their team-mates easier. The goal seperated both sides arrived in the 58th minute, Armstrong swooping to head past Julian.
Downes brought on both Hughes and Wright in last half-hour, but neither could break down the Wrexham back-line.