the sound difference is very noticeable, with the catted downpipe you almost don't notice the sound increase unless you are on the wide-open throttle. It's there on low RPM but barely noticeable.
We offer the newest versions only, the catted has hangers and the catless does not
In my opinion, all Supra owners with access to E85 should take advantage of it. Bm3 + E85 and stage 2 mods will make up to 34% HP / 30% TQ
Try that with the stock turbo, if you still want more power get the Pure upgraded kit.
FTP offers quality products, I recommend upgrading the charge pipe if you are tuning your car.
With all the current shipping delays you do not want to be left waiting for weeks with a broken CP
We are offering all Active Autowerke products for 15% OFF + Free Shipping, no need to wait till Black Friday
https://store-gd6olw6.mybigcommerce.com/active-autowerke-aa-bmw-supra-b58-downpipe/
The car runs the same with CEL; it's just a warning light. AFR is the same with catless as your ECU adjusts fueling.
From my experience, O2 spacers are unreliable. Your best bet is to pair the downpipe with bootmod3 for no CEL and a lot more power. :D