RS West

Common ringland failure on stock piston #4 on ej25s when it’s pushed even just a tad over stock boost. Solution? #rswstage1 and a good tune.

#rswstage1 on this manual lifted fozzy coming right up. #foresterxt #forester #subaru #subaruforester #foresterculture #sti #fozzy #subie #subiegang #foresternation #turbo #foresterparts #subienation #fozzynation #subieflow #jdm #subarusti #wrx #ej #subielove #fxt #foresterlove #fozmafia #pnwsubies #forestermafia #subiespeed

#rswstage1 getting some breakin mileage.

A pair of Subaru front axle seals. Can you tell the difference?

Clutch and flywheel swap on this clean carbon fiber front sti. @stayhumble_modesto #sti #subaru #wrx #subie #jdm #subiegang #subieflow #wrxsti #subienation #impreza #subarusti #subaruwrx #turbo #ej #subiedaily #subielove #subarunation #awd #subarulove #subaruimpreza #subaruwrxsti #boosted #brz #cars #jdmgram #stancenation #boost

#rswbuild_evotrans assembly time. @synchrotechtrans

Water pump and thermostat replacement on this #porsche911

#mitsubishi trans number 4. This ones off a #ralliart with twin clutch SST trans. Parts need to hurry up so they can start going back in! #rswbuild_ssttrans

When the lift is taken you put it up on all 4s. Auto to manual conversion with jdm transmission on this #25rs #gc8 #subaruimpreza

Dentistry, well fix your broken tooth. #rswbuild_evotrans

Just a quick jdm2.0 engine swap on this #subarubugeye wagon. 1 day turnaround with 50k miles on engine. We should call this the number one #animalstyle #inandout. Sorry I was hungry posting this lol. #happyfriday!!

Final Custom battery relocation to the trunk on this #evo. We did not want to drill any holes in the trunk so we utilized existing holes and fabricated a mounting bracket. Battery is also placed on the passenger side for weight distribution opposite from driver weight to maintain balance. End goal for this #rswbuild_evo is reliable autox monster. With fast spooling #evo9 turbo conversion, e85 conversion, tight suspension set up, and we’ll balanced for cornering. Fun build project for sure! Off to breakin miles then on to the rollers for tuning! #rswbuilds

How many can you spot? #rsw tag just trying to fit in with the @perrin_performance. This #rswstage4 @iagperformance built block is ready for the rollers. #rswbuilds

Going under the knife. #rswbuild_260z

Some trans work on this #evox

#rswbuilds_gcswap is now BAR’d!! This 2.5rs is now California smog legal with our Wrx turbo conversion. The process is time consuming but worth it and adds value to the vehicle. Best past is you won’t get harassed by CHP. If you want your non turbo Subaru to have a turbo and be legal, Hit us up!!

We keep things interesting around here. #rswbuild_260z project coming up. #z #datsun #s #nissan #zx #fairladyz #gtr #jdm #zociety #nismo #fairlady #zcar #skyline #gt #rb #vq #datsunz #datsunzseries #turbo #nissanz #g #classic #jdmgram #classiccar #socalz #jdmcars

The infamous cylinder #4 ringland failure on ej25s. The fix? Drive it normal with a light right foot. Otherwise get a proper tune and some forged pistons(#rswstage1). Off the shelf maps/tunes/etunes just won’t cut it.

Another one...Tagem and bagem #rswstage1 complete on this #subarusti. Awesome to hear our shop is recommended by tuners throughout NorCal for engine builds and swaps. We don’t do any advertising, we just push out the best work we can with our 40+ years of combined experience. Thank you thank you for all your support and word of mouth!! #rswbuilds