when my taco was at stock height i went to a muffler shop to install my exhaust. the guy working asked me if i planned on lowering my truck and of course the answer was YES. he told me i should lower my back before he installs the new muffler and piping. i lowered the back 3" using blocks and a day later i had the muffler and piping installed. it was a single inlet/duel out muffler with custom piping. so now...there are two pipes running straight to the back, about 6 inches from the license plate on each side. soo...here's my problem-i plan on lowering the back another inch using 4" blocks within the next week or so....will that affect the pipes? will it raise or lower the piping...if anything at all? i 'm worried because i don't like forking up some more loot to have the piping moved or redone. any info would help...THANKS!