A Bradford couple are having a roaring success after interest in their custom-made exhaust business accelerated.

Andy Ainsworth, pictured, and Christina Girling set up Zorstec in a former mill building just two-and-a-half years ago.

Now the firm, which designs and makes bespoke stainless steel exhausts for motorbikes and cars, is attracting world-wide interest.

It is thought to be the only specialist business of its kind in the UK.

And the couple admit they have been blown away by its success.

Andy decided to set up his own firm after being made redundant when another exhaust manufacturer went into liquidation.

Now he uses titanium and steel to create designs of any configuration, size, shape or colour to match customers' individual requirements.

Today Christina admitted interest in the firm had taken the couple by surprise.

"It has been absolutely choc-a-bloc for the last two-and-a-half years," she said.

"We have attracted a lot of business from all across the country and especially from the south.

"There is no-one else doing anything like this as far as we know.

"If the customer comes up with a unique design, then we do our best to turn it into reality.

"Business has been increasing 100 per cent month on month and it's still growing. When we first set up we had a full diary for three months."

Interest has grown internationally through the firm's successful website.

But the couple have no current ambitions to expand from their unit in Trafalgar Street, off Manningham Lane.

"We are certainly interested in taking people on but we are keen to keep it a small family business," said Christina.