I couldn’t decide if I wanted to keep my 2008 Saab 9-3 Aero exhaust comfortably quiet, or delete the mufflers and let the turbocharged 2.8-liter V6 sing. So, I decided to install a QTP electric cut-out and have the best of both worlds.
The components shown above were shipped to my door for less than $250 from an eBay vendor, and overall I’d say it was worth it. As usual, Chris was much more methodic when he purchased an electric cutout for his 9-3, so his ended up being a bit cheaper and included a turndown to direct the exhaust fumes downward.
While I had the exhaust system off for the cutout install, I decided to hollow-out the secondary catalytic converter, which is located on the mid-pipe. After making the cuts on deleting the cat, I took the tubing to a shop to have it all welded together. To clarify, yes, it’s a single piece from the flex-pipe to the mufflers. See the video below to get a sense of what this configuration sounded like.
I love the snarl that the LP9 engine makes when its fully uncorked, especially models equipped with the “rumble box” from the Turbo X. The video above was captured back in 2014, when the Aero still had its primary catalytic converter. This cat was eventually deleted as well in an effort to mitigate the tremendous heat these V6es make, though the exhaust note was just as satisfying as the slight bump in performance.
It’s worth noting that while the QTP cutout is a wonderful noisemaker, dyno testing performed by JZW showed a loss of torque with the cutout open. That said, my personal butt dyno couldn’t feel a difference.
I don’t really have any complaints about the system. Having the cutout made me a bit more mindful when going over speed-bumps or uneven surfaces, but I never had any issues with it aside from having to bypass the wiring connectors used by QTP. There certainly isn’t a lack of opinion when it comes to cutout placement, and my own belief was that as long as it’s angled downward and not directed at any part of the vehicle then I’d be fine.
The exhaust system is currently not being used as the future of my 9-3 Aero is still in question. In the meantime, I’ll list it for sale at $200 or best offer to anyone who’s interested in a cheap 9-3 Aero exhaust with an electric cutout. You can see images of the exhaust in the gallery below, and submit your offers to: firstname.lastname@example.org.