I bought my RX-7 in 1998.  It is a 1995 model (the last year RX-7s were imported to the U.S.).  It is a R2 package (race version - different springs, dual oil coolers, suede leather).  There were only 23 red R2s imported in 1995.

Over the years, I have modified my 7 towards better performance.  Here is a list of modifications:

Greddy T-78 Single Turbo                                        
Streetported Engine
Greddy Down Pipe  
Borla XR-1 (used as midpipe)   
Apexi N1 Dual Tip Cat-Back
Greddy Type-R Blow-off Valve
Unorthodox Pulleys
Greddy Elbow  
Greddy 3 Core Front Mount Intercooler
Koyo Radiator
ACT 100% Over Clutch
Shane Racing 9.5# Aluminum Flywheel
Pettit Racing Drag Launch Kit
Stainless Steel Braided Brake Lines
Dual Supra Fuel Pumps
-6 Braided Fuel Lines
Weldon Racing Fuel Filter
SX Rising Rate Fuel Pressure Regulator
Power FC w/ Commander w/ Datalogit Laptop Software  
HKS Twin Power Ignition
850cc Primary Injectors
1600cc Secondary Injectors w/ Custom Fuel Rail
Aquamist Alcohol/Water Injection  
18" Enkei Aegis Wheels
Eibach Lowering Springs
Mazdaspeed Short Throw Shifter

On a DynoJet dyno, the 7 has put down as much as 456 rwhp / 352 rwtq.

To date, my best time at the drag strip has been a 7.37 1/8th mile (11.40 1/4 mile).  I think with some boost built at the line, 6's in the 1/8th mile (10's in 1/4 mile) are obtainable.  These runs were at 17 psi on pump gas.  I plan on tuning to 21 psi soon.