Builds / Lighting FX

The world's first sim-rig exhaust

Backfire Exhaust Tip

The tailpipe your rig never had, and the first anywhere with backfires that answer your right foot. Lift off at high revs and it cracks and pops like a rally car on anti-lag, then glows down as the revs fall.

Designed, built and tuned by Adam Smadja. Four of them run on his rig today.

Exclusive to SimDriven. Made to order.

The octagonal backfire exhaust tip, studio render
Studio render

01 On the rig

The world's first sim-rig diffuser

Four tips. Every lift-off.

Set into the rear diffuser in pairs, each tip fires on its own, so the pops roll across the back of the rig instead of flashing as one. The brake light between them reacts to every stop.

Four octagonal backfire tips set into the GT1 EVO rear diffuser, with the brake light in the center
GT1 EVO rear diffuser with four tips · studio render

02 Evolution

Ten days, seven versions.

From a round tip that missed the mark to the octagon on the rig today. Every version was drawn, made and fitted on the rig, and the ones that broke taught the next.

The first idea: a compact rally exhaust

A compact rally-style exhaust box for the back of the rig. Big, busy, and not the one.

“I am thinking to explore a whole other direction”

1 / 1
  1. 3 Aug The first idea: a compact rally exhaust superseded
  2. 31 Aug Round tip, first fit superseded
  3. 31 Aug Aston-style round tip (rejected) failed
  4. 5 Sept Ten shape concepts concept
  5. 5 Sept N1 Octave, first body superseded
  6. 5 Sept N1 Octave v2, full length superseded
  7. 5 Sept V3: first test (failed) failed
  8. 6 Sept V4: redesigned failed
  9. 6 Sept V4: fit samples worked
  10. 6 Sept V4-A: fits, too fussy (failed) failed
  11. 7 Sept V5: Version 1 final worked
  12. 8 Sept V2: on the rig, in pairs worked

03 In the studio

Made to be looked at.

Eight faces, a sloped mouth and a field of vents that throw the light from inside. It reads as a real tailpipe from every angle, lit or dark.

Studio render
The GT rear diffuser with four backfire tips and the brake light lit, studio render

Exclusive to SimDriven · made to order

Want a set for your rig?

Every set is made for the rig it goes on. Enquiries open with the launch of the site.