You asked, we delivered! The next step in our GRC exhaust program is here!
We present the dual exit Signature exhaust system for the GR Corolla! Bringing you what you’ve come to expect from RK with industry leading lightest weights at 13.2lbs with the Helmholtz option or 12.3lbs without!
But that’s not all ~ All RK systems are modular by design. So what does that mean? They are interchangeable! You currently have the Signature drivers exit now, and want the dual exit Signature? No problem! Order the Signature dual rear section and swap it in! Reuse and save some money on your current front pipes as all proceeding RK systems for this platform will use those!
What else did we do with the dual? You now can customize the rear section with any of our coloring variants! Please keep in mind, all front and midpipes are only shipped in raw uncolored as with all of our systems!
Helmholtz carry over to this system! Well what is that? A Helmholtz resonator is a specifically designed size, length and shape of tubing that acts as a noise canceller for specific sounds and frequencies when fine tuning an exhaust. We specifically targeted the ‘drone’ at highway cruising speeds and rpm’s between 60-75 mph.
So what does that mean exactly, did you get rid of any drone?
Simply put, our Helmholtz design reduces the amount of drone or in cabin resonance created by a free flowing exhaust system in these specific cars. This does not however mean it will work with XYZ companies downpipe or catless turbo elbow or zyw companies bigger turbo. The calculations we used are targeted for stock or mildly modded cars. It is not a one size-fits-all 8 lb muffler thrown at the midpipe of the exhaust system in hopes it worked. It will not affect the overall sound of the car but only adds .9 of a pound!
- Industry leading 13.2lbs w/Helmholtz (12.3 without)
- Handmade by us in the USA
- Lifetime warranty
- Fully Tig-welded and back purged
- Full 3” CP grade construction
- Full array of RK coloring choices for rear muffler section
- Adjustable 4.5” slash cut tips
- Hardware to relocate your oem valve motor
- Clears Verus rear diffuser
- Modular with all RK systems
- Includes Muffler section, front pipe, mid pipe and all hardware required for install.
*NOTES*
- Bumper block-off plates are not included.
- This replaces the oem exhaust only. This does not include the turbo elbow or midpipe
- All systems are made to order. Systems are almost never in stock.
- Lead times can vary based on current order volume. Lead times on most exhaust systems are 6-10 weeks
- All whp and wtq numbers are not guaranteed. Results were achieved on the same dyno in 2wd dyno mode. Runs were done with the Signature drivers' exit, which is a similar design to the center exit.
