the new


For the development of custom turbo manifolds utilizing nominal pipe (schedule 10&40) elbows:
the new


For design and fabrication of precision full exhaust, cat-backs, turbo downpipes and intake and turbo "cold pipe" tracks:
the original


For design and fabrication of custom tubular exhaust headers utilizing pre-bent tubing:


Awesome product....I’ve had it for 6+ years and it’s helped build 100s of turbo manifolds and headers...


Great product. Built my first set of headers right the first time in the car ... Without icengineworks’ help our project may have never been completed. Your product allowed me to fir every primary so that every plug was accessible even in a tight engine bay.

Marty Dunn

How it Works

Stage I

design and
The most important step in our system, STAGE I allows builders using our patented plastic blocks to quickly generate the tubular shapes and geometry required to test fitment, ease of fabrication and even set budgets for any project. The only requirements are that the engine is fitted in place with flanges and starter tubes and that exhaust collectors, or Collector Dummies are firmly secured in their final positon in the engine bay. Sold in sets per SERIES (tubing OD specific).

Stage II

With the information from STAGE I, STAGE II provides a fast and accurate way to cut the required metal sections out of standard U-bends and J-bends. STAGE II tools work with most vertical band saws. They include a universal cutting plate and a set of OD specific or SERIES-specific machined HDPE cutting spacers to hold the U-bends or J-bends. Sold individually or in packages.

Stage III

assembly and
After the individual metal sections for the tubular exhaust header project are cut, builders move to STAGE III: Assembly and Welding. STAGE III utilizes one of the most innovative products to hit the fabrication industry in decades: the patented icengineworks™ stainless steel tack-welding clamps.

These clamps provide an amazingly quick and exact way to firmly hold multi-sectional tubular assemblies together. Proper relative rotation at each joint is easily adjusted until the entire assembly becomes a solid recreation of the original plastic block model. They provided endless opportunities to verifiy fitment for clearance, accuracy and exact alignment with the receiving tube ends at the head flange, exhaust collector or Collector Dummy prior to tack-welding the assembly. Sold in sets of 4.