Original S4 NA rotating components(including counterweight because the car was an automatic).
* Polished rotors.
* Teardroped E-shaft oil galleries.
* New stock bearings lightly clearanced.


Original S4 Irons.
* Cermet A coating by JHB Performance.
* Oil galleries radiused.
* Pump cavities shaped and smoothed to near-polish.
* EGR blocked off.
* Front housing top oil feed plug drilled and tapped.
* Stock intake ports smoothed out and flow matched(not enlarged much at all, just raised maybe 2 mil and given a slight radius).


S5 NA Rotor housings.
* Cermet B coating by JHB performance.
* Water jackets grooved.
* NA exhaust sleeve baffles cut out and roof of sleeve lowered to improve flow into headers.


New Renesis stationary gears with renesis multi-window bearings.
* Matched and radiused oil galleries.
* New factory bolts.


New FD oil pressure regulator.


New Mazda thick shaft tension bolts.
* Silicone spiraled during assembly.


All seals and o-rings new from Mazda.
* 2-piece Mazda apex seals.
* FD corner seal springs.
* Competition oil seal springs.
* Long side seals lapped to length by hand.


New metering oil injectors.


* New oil pump chain.
* New turbo oil pump.
* New bearing plate and competition thrust bearings.
* Washered thermo pellet.
* Oil galleries radiused and smoothed.
* OMP converted to 2-cycle oil injection and lines rebuilt.




* Oil lines rebuilt.
* Custom made sandwich block for front bearing oil feed and future remote bypass filter and gauges.
* Custom made SS oil baffle plate.
* KOYO Racing aluminum radiator fit with custom made brackets.
* Custom thermostat neck cap block-off with bleeder.




* Converted to S5 intake, AFM, fuel rails, and vac nest.
* All manifolds port matched.
* New Silicone vacuum lines throughout.
* Dynamic chamber and VDI manifold runners given internal drag-reducing coating.
* Throttle body modded, ported, and polished.
* AWS and EGR Removed/blocked-off.
* S4 BAC valve modified to fit S5 VDI intake.
* Adapted S4 wiring harness to fit S5 intake setup and integrated custom made rpm switch control of VDI and 6-ports.
* Pineapple racing 6-port inserts.
* AEM cone filter.
* Custom made Stainless steel long tube 2-1 header and mid-pipe.
* Borla SS catback system.
* Upgraded to heated O2 sensor.
* New fuel pump.



* Custom made battery-starter-alternator harness with heavy gauge wires.
* Retrofit remanufactured Ford 3G alternator(fuel cut system adapted to alternator lamp output after swapping in S5 AFM).
* Manual fuel pump switch to combat cold start flooding.
* 5sp gauge cluster conversion(installed with car's original odometer swapped in).
* Custom made dual control IC rpm switch for VDI and 6-port activation.
* Shielded 3-wire heated O2 sensor signal harness direct to ECU.
* Fixed cold solder joints in idiot cluster.


* Conversion from Automatic trans to S5 5spd manual(kept the auto's slightly taller rear diff).
* F1 stage 3 ceramic clutch.
* Fidanza lightweight flywheel.
* Power steering permanently deleted.
* Front sub-frame repainted with POR15.
* Competition engine and transmission mounts.
* New Energy Suspension Urethane front suspension/swaybar bushings(I also have the remaining uninstalled bushings for the rear suspension).
* A-arms polished.
* SS Braided Brake and clutch lines.
* Rebuilt front and rear brakes(new front pads/rotors less than 600mi ago).
* New slave cylinder(clutch fluid flushed and replaced with ATF).




* New hardware/nuts-bolts used throughout the majority of the rebuild and assembly.
* A lot of extra detail/painting work went into the motor and intake.
* Salvaged and repaired sunroof.
* Removed 10lbs of sound deadening material while I had the interior out and reinsulated floorpan with lightweight foil-faced stuff.
* AC system flushed and retrofitted with Enviro-Safe(r) (blows cold, but does struggle on hot Southern summer days in traffic)



* The body is in about the same fair condition from when I rescued it(1-2 small spots of rust,dead paint, several little dings/dents).
* Permanent air filter mounting and cold air box haven't been fabbed yet.
* Many missing/broken/crappy interior pieces.
* Something broke the rear left blinker lens last month.
* The wiper switch only works on low speed.
* Some of the lights in the center air/ac controls are out(but all the controls still work).
* The reverse lights quit working years ago(an easy fix I just haven't bothered with).
* The fuel tank seems to have some rusted/failed baffles(If I drive aggressively with <1/4 tank she sputters now and then).
* The motor likes to seep oil after being run and leaves a few drips overnight.
* The water pump developed a leak and I used a leak-stopper to mitigate the nuisance(because I'm broke and have zero overheating/plugging worries with the over-sized cooling system).
* If the car sits for a few days/week it can be a little hard to start, will lightly smoke for about a minute, and I think sometimes that I smell antifreeze(but have had absolutely no signs of compromised coolant seals i.e. overpressure/exhaust bubbles/oil residue in the coolant system)
* The factory stereo crapped out not long ago, the power antenna doesn't work, and the rear amp-speakers are blown(but I have new speakers and a replacement stereo/CD player I am planning to install when I have the time).