How to Install | Boomba Transmission Adapter for '15+ Subaru WRX

[@frankiet39]

Just installed this. Shifting is way better. I used two washers on the shifter cover plate to give it a bit more clearance. I used the smallest ratchet possible to get the top 12mm bolt from the cover

[@pumpniron1]

For anyone watching and doing the install read this Took me an hour or so to figure it out but here is a tip for getting that shit screw off the top of the guard plate. Wish I knew this prior install would have been only 1.5 hours. So you’ll need a long flexible head 3/8 ratchet and a short 12mm 3/8 socket. Reaching from the rear side place the socket onto the bolt (you have to feel for it you can’t seee shit) then from the engine side of the the plate (other side) reach over the top with the long flex head ratchet, use your other hand from the rear to push the ratchet onto the socket BAM more than enough room to take it off I was so pissed and relieved when I figured this out after fuckin my hands up with a damn box wrench. Also for the roll pin use a smaller punch to knock out the smaller pin first then the 5mm to knock the bigger OMG so much easier took 2 sec Anyways there yah go

[@SuperGamerfan]

For Sure! Currently running Boomba Shift Plate, with Boomba Short throw Shifter, Perrin Shifter bushing, Perrin Shift Stop, and Raceseng Shift knob. Smoothest Shifts you could Imagine take no effort what so ever to switch gears and it gets rid of the Notchey feeling

[@BoombaRacing]

Glad to hear you feel you have perfected your shifter set-up!

[@YOUJCELO23]

Nate O'Neill hey man I just want to ask how did you able to fit the Perrin shifter bushing to boomba shifter plate cuz mine don't fit and I'm not sure if I have to force it down or something

[@JunkWoodProjectswithJacob]

Anyone attempting this in 2021. Use a 1/8 punch to punch out the smaller pin and then a 3/16 punch to punch out the bigger pin. Take ur time with this one can get frustrating.

[@pjaxy]

OMG thank you very much. They never said anything about that. Hey @boomba you gotta pin this comment.

[@nuttynate797]

Well, killed my 17mm socket on the first transmission bracket bolt, guess Ill try another day

[@drivanivan]

Excellent product .works very well, I think the only slightly tricky part is one small bolt that holds the rear cover over the shifter plate. The fact I removed the transmission cross members was probably the one thing that made this possible because it allowed the transmission to drop down about 1-2 from the trans tunnel of the car. The issue with the one bolt on the rear cover is the top most forward bolt needs to be removed ideally with a wratching open end box wrench, i doubt any socket and wratchet combination would get between the bolt and the body without interference, I put both the shifter plate and the short shifter in my 2015 WRX in a little more than 2 hours and thats included jacking the car up and down and putting my tools away, yes believe it or not I actually put my tools away because I was sick of buying new ones to use every time i needed to work on my car again years ago. Have fun you guys this was an easy install and the difference is amazing Thanks Boomba.

[@BoombaRacing]

Glad to hear you got it all installed and are liking the throws! Thank you for choosing Boomba and we're very happy to hear you are loving the product. You made pretty good time for installing everything there.

[@nuttynate797]

Took me 3 days to get that dang roll pin out

[@balut_2583]

Is it safe to remove the transmission mounts? I see that the whole trans moved after you unlosen the bolts.

[@pumpniron1]

3.5 hours later ….. fuck that top bolt and fuck that roll pin

[@jfranning]

this part is great, thanks boomba now my car shifts like heaven

[@gogodori]

Been buying from boomba and this part does not disappoint, such a great quality product with the greatest feel, this is the best short shift plate out there for the Subaru

[@BoombaRacing]

Thanks for the kind words! Glad to hear you are happy.

[@pg8372]

So we’re not reinstalling that shield which covers the oem shift plate ??

[@gatorb8]

No, I guess it gets in the way and will result in a stiff shift instead of smooth. I keep hearing ppl are putting it back on but with washers some how.

[@sann823]

Anyone have problems after installing this part? My reverse lights don't work at times. I go into reverse and my reverse lights won't get triggered. I have to wiggle the shifter a bit or push it to the right pretty forcefully and then they'll come on. Idk if I should just remove this thing.

[@MrMoxyspirit]

Hahaha 3/15 punch, it is a 3/16" punch or 5mm

[@honeyrattan6486]

do we need a transmission support jack while taking the mount off?

[@jstin7826]

how do you disconnect the shifter cable.

[@BoombaRacing]

Check out our Installation Guide: www.boombaracing.com/content/WRX%2015%20Shifter%20plate.pdf

[@craigfisher9197]

Does anyone have any additional information on how to remove the rear shifter plate cover? The install video just says to remove it, but I couldn't get mine off. I did this install yesterday, and aside from it being a colossal PIMA to do on the floor of my garage, it went well. Since I couldn't get the shifter plate cover off, it's still in the way. I have it bent up as far out of the way as possible, but the boomba short shift adapter hits it occasionally. Any extra tips would be helpful.

[@BoombaRacing]

The shifter plate cover stays off with our shifter plate installed. The guard stays, but the larger cover remains off. There are only a few bolts that hold it on. There is one on top near the body of the vehicle that is a little bit difficult to get to, however.

[@craigfisher9197]

That was where I'm confused. I removed three bolts, one facing the passenger side, and two rear facing (above and below the drive shaft), but couldn't get the cover off. Are there more than three bolts?

[@BoombaRacing]

There are four bolts as seen here: www.boombaracing.com/content/WRX%2015%20Shifter%20plate.pdf

[@craigfisher9197]

Thank you. I figured there had to be one more bolt some where

[@BoombaRacing]

Hopefully this gets it figured out for you!

[@chriss526]

Great installation video. One question....is the shifter plate cover not reinstalled once the Boomba adapter goes on? The tech in the video only reinstalled the cable cover.

[@BoombaRacing]

One of the covers remains off with the installation of our plate. As long as you are not constantly off-roading your car, you shouldn't have any issues.

[@javiderek31]

+BoombaRacingInc does it fit back on with the boomba transmission plate?

[@BoombaRacing]

The one cover remains off when you install our plate. The cable cover stays, but the lower cover does not. This is only if you install our shifter plate. Our short throw shifter doesn't alter anything underneath the vehicle.

[@WillGreenZilla]

Punched the pin out no problem.. stock plate does not budge on my 2017 to remove it.. wtf.

[@BoombaRacing]

Are both pins out? It is sort of a "pin side of a pin" type set-up.

[@WillGreenZilla]

BoombaRacingInc thank u for the reply.. I punched the small pin out not realizing there is a bigger pin as well at first lol. 👍

[@BoombaRacing]

Glad to hear you go it figured out!

[@erikhoff3441]

Boomba Racing Mine still won’t budge after removing both pins. It’s a 2016. Anything else that might be holding it in place?

[@sonorousaria]

How much should I torque the transmission support brackets?

[@BoombaRacing]

No need to get crazy with those brackets, but you do want to make sure they are nice and tight.

[@QactisX]

Crossmember and Cushion Rubber: Tightening torque: 35 N·m (3.6 kgf-m, 25.8 ft-lb) Install the crossmember. Tightening torque: T1: 70 N·m (7.1 kgf-m, 51.6 ft-lb) T2: 140 N·m (14.3 kgf-m, 103 ft-lb) T1 being the 14mm head bolts (there are 4) T2 being the 17mm head bolts (there are two)

[@nofearastig]

is the Boomba shift plate compatible with the Perrin shifter bushing?? i heard that the Whole is little bit small....

[@BoombaRacing]

Yes it is compatible!

[@indraotsutsuki5591]

The hole is a bit to small I can’t get mine back on the new boomba plate

[@seannguyen768]

Just got this and my perrin shift bushing doesnt fit. Any suggestions???

[@BoombaRacing]

What about it doesn't fit? We've got some customers running both piece. However most people feel that our plate alone eliminates the need for a shift bushing.

[@amritkahlon1988]

Do you need to support the transmission when you remove the supports?

[@ChaseAtkinson1]

does anyone have any advice on how to get the transmission support braces off? I cannot budge the bolts no matter what I do.

[@BoombaRacing]

If you don't have access to an impact, we recommend a large breaker bar.

[@odessit777]

I often end up driving my car in extreme snow (and obviously salt) on my way to/from ski resorts. With the shifter plate cover permanently off, wouldn't this be an issue when driving in harsh environments?

[@BoombaRacing]

This plate is billet steel and will not corrode. We have been running our car with the cover off for years now in Illinois (salty wintery climate) with no issues!

[@mychannelforfun5523]

Does the Perrin shift bushing fit on this with no issues?

[@BoombaRacing]

That part should work with no issue with our shifter plate.

[@indraotsutsuki5591]

I’m having trouble fitting the bushing on the new shift plate :/

[@thomasmendoza1780]

Any information on the tools needed for the boomba short shifter?

[@BoombaRacing]

Everything needed to install the lever is listed at the top of this PDF: www.boombaracing.com/content/WRX%2015%20Short%20throw%20shifter.pdf

[@midnite8991]

Any torque specs for the transmission support brace bolts?

[@BoombaRacing]

Make sure they are pretty snug and you are good to go. They are strong bolts threading into heavy metal, no need to be too concerned about snapping these.

[@QactisX]

Crossmember and Cushion Rubber: Tightening torque: 35 N·m (3.6 kgf-m, 25.8 ft-lb) Install the crossmember. Tightening torque: T1: 70 N·m (7.1 kgf-m, 51.6 ft-lb) T2: 140 N·m (14.3 kgf-m, 103 ft-lb) T1 being the 14mm head bolts (there are 4) T2 being the 17mm head bolts (there are two)

[@tomreeve52]

Do you post to the UK?

[@BoombaRacing]

Yes we do!

[@tomreeve52]

@@BoombaRacing subaru use the same gear linkage set up on the diesel line up in Europe with 6 speed boxes. I would like to fit this on my impreza. I have already fit the brass bushing that is designed for the 2015+ wrx.

[@SuperGamerfan]

You better have small hands in order to get to that bolt on the top cover lol took forever

[@BoombaRacing]

But the end results was worth it, right?