ABOUT TWO DAYS AGO, THERE WAS A BRIEF DISSCUSSION ON THE PERFORMANCE OF A LEX GS400 VS. AN M3. I HAVE A 97 328IS, WITH THE FOLLOWING MODS. FLO-TECH COLD AIR, B&B TRI-FLO EXHAUST, A.P.E. PERFORMANCE SOFTWARE (CHIP) RACING DYNAMICS STRUT TOWER BRACE, COMPLETE M TECHNICS PACKAGE. FRONT, BACK SIDES, MIRRORS. 5-SPOKE 17" INCH BMW FACTORY RIMS, 235 40 TOYO RUBBER. MY NEIGHBOR HAS A STOCK GS400. WE BOTH "DRIVE" OUR CARS. FROM O-80, WE ARE ABOUT EQUAL, 80-115 HE HAS ABOUT 2 CARS ON ME. WE BOTH HAVE BEEN OVER 150, BUT WE RUN OUT OF ROOM. MY CAR STOPS AND HANDLES A LOT BETTER.WITH MY MODS,I AM COMP TO A STOCK M3. MY COST, WITH MODS 42K. HIS 56K BMW WINS. HEY GUYS, DO I WANT A LIGHTWEIGHT FLYWHEEL AND CAM, OR A SUPERCHARGER. I HAVE 55K MILES