This is a 2 1/4" exhaust I made for my NA 2+2. It was on my Zed for about a year before I took the car off the road to fit the VH45DE Here is the dyno results. The red line is prior to fit the exhaust and at blue is afterwards It as 2 Luckey mufflers, 2 resonators, a cross-over and stainless steel tips. It produces a nice growl, which is not to lound and there was little cab drone Price $500, pickup only Unorthodx Underdrive pulley with belts This was on my Zed for 3 years without any problems and on extra vibration. And the old girl as got 262,000Km on the clock. Price $150 + postage Eaton M62 Supercharger This is for engines 2.0L - 4.0L I was going to supercarge the V6 till I decided to fit the V8 Price $400 + Post