| Recently upgraded my 2.5" Greddy SP exhaust to Specialty Z's 3" exhaust including the new 3" 5-bolt down pipes. I've got the MS manifolds and 530BB turbos. Just leaving a stop sign I can hear the turbos spooling, tromp on it and your gone! After the re-tune I gained over 70 ft lbs of torque @ 4,200 RPM (20 psi) and 30 RWHP @ 5,800 RPM (18 psi). The cars a little louder but still fairly quiet with the added resonators. FYI, Got the 2.5" SS downs and test pipes listed in classifieds. Need to take some new photos of the car but here's some of the exhaust. Very happy with the upgrade except for the pocket book!
Photos:
 
  MISC. Z PHOTOS: La-Z-Link MISC. HOVERCRAFT PHOTOS:La-Z-Link
1990 Sliver Twin Turbo, Original Owner, 57,000 miles Best 1/4ET: 13.10 @ 107.6 MPH (prior to current mods)
OTHER TOYS:
1969 Big Block 396 SS Camero. 468ci, 13:1 compression, Solid roller cam, 456 Spool and big sticky tires. Best 1/4ET: 10.36 @ 136.7 MPH Two passenger hovercraft with a 110 hp Hirth electronic fuel injected engine. Max Speed 60 MPH on water with no brakes! Four passenger hovercraft, stock. Max Speed 47 MPH. |
Love my new 3" exhaust...Turbo Lag - A thing of the past! - 
