HEADER - SUZUKI DRZ400 SProduct Features, Dep 2 Stroke Front Pipe, High Strength tig welded, CNC machined manifold, Dyno tested to gain maximum performance, Extensive track tested to produce stylish high standard pipes, As used by many top riders, DEP Quality!! Improved Performance Over OE Pipework Developed with In House DYNO & Track Testing TIG MIG Welded for Quality And Strength DEP Exhausts produce a huge range of 2 stroke expansion pipes. Each has been manufactured from