I just ordered and installed a new 4" MBRP system from Mark at DPP. Removal of the old unit was, as indicated on prior threads, by far to worst part of the job. I wanted to salvage it for future smog inspections. The new system went together easily and the instructions, although terse, were adequate. Overall, I feel I got good value and great service from DPP.
Dan Oo.
Dan Oo.