Description:

This is a one off GT4 lightweight 2.5" (PSE 2.25") race exhaust that Dundon built for me;
Inconel over axle pipes
Coast Fabrication thin wall stainless steel mufflers
Titanium 3.5" straight exhaust tip section
Performance Coatings satin titanium 2000C ceramic coating

Weighs 14.1 lbs with the eight clamps.
The PSE is 38.5 lbs, so the weight savings is 24.4 lbs.

This system screams like an RSR at high RPMs, but doesn't draw attention if driven at low load and low RPMs.

Used with Dundon race headers without catalysts.
The original perforated muffler inserts and packing have been replaced with titanium straight pipe inserts that raise the resonance frequency above the drone range.
Headers with catalysts would somewhat muffle the exhaust.

More details at;
https://rennlist.com/forums/gt4/9937...or-3800-a.html
https://rennlist.com/forums/gt4/9321...e-journal.html

$3,800 - Dundon lightweight race exhaust
$ 450 - Performance Coatings satin titanium 2000C ceramic coating
$1,288 - Materials used to arrive at the titanium straight pipe insert configuration: stainless steel straight and slip fit tubing, hole saw bits, custom titanium baffles, titanium perforated, straight and slip fit tubing, stainless steel and ceramic packing

Asking $2,950 (includes CONUS shipping)

Obligatory video of revving the engine while stationary;