Y-Pipe and Exhaust

Wilhelm Raceworks Y-pipe for 2GR swapped MR2 Wilhelm Raceworks Y-pipe for 2GR swapped MR2

Wilhelm Raceworks Y-pipe installed

Wilhelm Raceworks Y-pipe installed

The Wilhelm Raceworks Y-Pipe connects Frankenstein Motorworks headers to the Berk Technology muffler.  304 stainless steel TIG welded construction, with 2.25" pipes before the merge and 3" pipe after the merge.  Includes stainless steel hardware for connection to both the headers and the muffler, as well as a gasket for the Y-pipe to muffler connection.

If you need a catalytic converter for an emissions test or just don't like the smell of a catless car, I can add a Magnaflow metal core cat to the Y-pipe as shown below.  The only catch is, it's a pretty snug fit and the lower most bolt on the rear e153 transmission mount won't fit any longer.  However, I have been running my car for over two years without that bolt and so far I have not seen any reason it is necessary.  There are four other bolts on that mount!  I can also modify existing y-pipes in this manner, please contact me to discuss.  Please note, this catalytic converter is not CARB legal, and this y-pipe with cat will not help make your swap legal in CARB states.  However it should pass most basic emissions tests.

Wilhelm Raceworks Y-pipe with catalytic converter

Wilhelm Raceworks Y-pipe with catalytic converter installed Wilhelm Raceworks Y-pipe with catalytic converter installed

Please note that this y-pipe is designed to be used with the E153 transmission, and the rear bank o2 sensor will be very close to the axle when the S54 transmission is used with your 2GR swap.  The version with the catalytic converter will NOT fit with the S54 transmission.

Made in the USA!


SKU 2GR Y-Pipe
* Options:

For those looking for something a little out of the ordinary, I am now offering a complete (header back) exhaust for the 2GR, featuring a twin tip center exit design and a Borla Pro-XS muffler.  Not only does this provide a unique look and awesome sound, it also saves about about 15lb off the back of the car compared to the Berk Technology muffler.  Please note that this exhaust requires the rear grill be modified or removed.  A rear diffuser to complete the look of this system is also available.

This exhaust is a little on the loud side.  It will generally measure 97-98db at ~50ft, so please keep this in mind if you have specific sound restrictions to meet.  However, cruising on the highway or around town is reasonably quiet in the car with the addition of the Helmholtz resonator as described here.  A set of tip silencers drops the WOT sound level by a couple db (95-96db typically) and quiets the cruise sound levels a little as well.  A little work is required to fit them, contact me for details.

Made in the USA!

Wilhelm Raceworks y-pipe with center exit Borla muffler

Wilhelm Raceworks center exit Borla exhaust Wilhelm Raceworks center exit Borla exhaust

SKU 2GR Center Exit Exhaust
* Options:

* Include Y-Pipe?:


Requires customized version of the Y-pipe that I sell.  Either order a y-pipe with the exhaust, or send in your existing y-pipe to be modified.

Note:  Made to order, ships in 3-4 weeks.

Customer car fly by video. Thanks Nathan!

Startup and rev video of my prototype exhaust.

Fly by video on the track.