Free shipping is offered on this product for the Continental US only. Please contact us for a shipping quote to other countries/locations.
This is HHR's SR1 Rear Exhaust for the 955 (2003-2006) Cayenne S and Turbo models. The SR1 is our flagship rear exhaust and replaces the stock Porsche Cayenne rear muffler with a single canister rear exhaust. This exhaust provides a free flowing exhaust to provide HP/TQ gains, as well as provide an exotic, airy, deep exhaust note from your Cayenne that is very livable on a daily basis. This exhaust note provides an aggressive exotic "Euro" sound under heavy acceleration, with a pleasant rumble under normal driving conditions.
We hand manufacture this exhaust system in Denver, Colorado. The tubing, hangers and muffler body are made from 304 stainless steel. The shape of the muffler is a low profile that tucks nicely under the car without protruding below stock muffler fitment. This exhaust utilizes your stock tips.
We believe this is a DIY project for anyone capable of operating a wrench and a cut-off wheel or reciprocating saw, but fitment and trimming are needed to get your tips to align and stick-out correctly. Plan on approx. 2 hours for installation.
The SR1 muffler inlets are sized depending on your model (955 S-V8 or Turbo), so please let us know what model you have when ordering. We build each muffler to suit your specific model, so plan on a handling time of 3-5 business days, after your payment clears, before yours is ready to ship.