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BWR Race Exhaust
BWR Featherweight Racing Exhaust Silent Touch

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BOE Racing Exhaust, Silent Touch
Our Price: $645.00

Availability:: Usually Ships in 24 to 48 Hours
Product Code: 1098

Exhaust type

Tip Option


Rear License Plate Bracket [Add $85.00]

Description Technical Specs Extended Information

BWR Featherweight Racing Exhaust

They're known as the “Quarterstick" (QS), Silent Touch (ST), and ST-5.

They are most known for the their ultra light weight and rebuildable features. Construction is 100% stainless steel and the kits are complete with mounting bar, instructions, all new mil-spec hardware, clamps, and tip—everything you need to install the system. They are available from BWR in above diffuser exit, so you'll need to modify your OEM rear panel, or you can purchase ours in the options at checkout. Alternatively we have a "low-exit" option pipe that routes the exhaust through the existing Diffuser hole exactly the same as stock.

The ST-5 weighs about 13lbs, the ST about 11lbs, and the QS only about 8lbs. Each system is completely rebuildable and contain the best packing materials including stainless steel “scrubble". Additionally, the mounting system is designed to be flexible to account for the large engine movement often found in the Elise, Exige, and 211 platform.

Design of the QS and ST are both straight-through and tested for horsepower ranges on the race track of over 400bhp for the last several years.


The dimensions were tested extensively with many different combinations of silencer diameter, core diameter, length, and packing material consistency to get great power, great sound, and kill the annoying drone present in so many exhausts including the factory and stage II systems.


Our BWR Exhausts are all 304 stainless construction with mandrel bent exit pipe. Its 2.5" straight-through design reduces back pressure to support high power applications. They have been tested on cars with 400HP both on and off the race track. Click the Additional Information tab for more.


Mounted using BWR's proprietary stainless steel mounting rod system. This rod mounts in the stock exhaust hangers. Through several trials, we've arrived at just the right amount of flex (compared to other rigid systems on the market), which allows the exhaust to move, eliminating the stress cracking that has plagued other exhausts. Additionally, there are provisions in the mounting system to reduce the chances of the exhaust "walking" to the passenger side of the vehicle; another problem many other systems are dealing with today. See the Additional Information tab for more.


Unlike any other Lotus exhaust on the market, The Race Exhaust is rebuildable. After a couple seasons of hard racing, you can undo the end cap and rebuild the exhaust with an inexpensive rebuild kit.


Critical to any racer, especially the Lotus owner. These are the lightest exhausts on the market for the Lotus: Including all the clamps, mounting rod, tip and silencer.


Now we get to the best part! These exhausts were extensively tested for great sound as well as power production.

Silent Touch

Off-cam it has a deeper, richer sound than stock and about the same volume. No drone. On-cam is still quiet in the ST-5 vs the Silent Touch, perfect for folks that want to be stealthy or have their best chance to pass sound at the local track. The ST is very good cruiser that let's people know you are coming on WOT and on cam. Very liveable on a day-to-day basis. The QuarterStick is named after the quarter stick of dynamite that it sounds like! It wails on the cam and sounds fantastically racy. If you are concerned it is too loud.....IT IS!!!!

This is a "high exit" exhaust, which requires removing part of the heat shielding and either trimming or removing one of the rear side panels. Additionally you can select the "low-exit" which is stock "thru-diffuser. We recommend the Blackwatch rear license plate bracket that replaces the rear panel.

Average Customer Review: Average Customer Review: 5 of 5 5 of 5 Total Reviews: 2 Write a review.

  0 of 0 people found the following review helpful:
5 of 5 Great Muffler March 17, 2013
Reviewer: Ziyad Showket from Mill Valley, CA United States  
Lots of weight savings here!  Super easy install, like other review said, took longer to take apart than put together.   Sounds is great, no drone, not to loud at all.  Expecting to pass sounds restrictions at Laguna Seca with cat in the car.  Get some exhaust wrap, looks much better than the factory insulation.

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  0 of 0 people found the following review helpful:
5 of 5 Silent Touch Muffler July 3, 2012
Reviewer: Charles Salerno from APO, AE United States  
Install was VERY simple! It took longer to remove the old nasty factory muffler than to put this new one in!! The sound is MUCH deeper than stock (most people don't believe it is a 4 cylinder!) and it is very clean looking with the Rear License Plate Bracket. You can listen to a "Before & after" sound check on youtube at

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