PRL Motorsports 3″ Downpipe Version 2 – 2016-2019 Honda Civic Si & 1.5T
Research and testing show that a downpipe upgrade is one of the most effective modifications to perform when looking to increase power out of Honda’s 1.5L turbo engine. We decided to take these findings one step further by upgrading the restrictive factory A-pipe that bottlenecks exhaust flow with a typical downpipe upgrade.
The PRL Motorsports downpipe is constructed of 16 gauge 304 stainless tubing and 304 stainless cast ends with smooth transitions internally for optimal flow and fitment. Exhaust pieces are fully back-purged on-site for weld integrity and optimal strength. Pair this with their 3″ Front Pipe piece for maximum exhaust flow and performance! Choose between catless or 300 CEL cat. There will not be a way to guarantee no CEL codes unless users turn it off via KTuner or Hondata. To follow suit with most PRL products no cutting, trimming or other modifications will need to be done. All kits will include gaskets, stainless hardware, and components needed for a seamless installation.
- PRL Motorsports Catted/Catless Downpipe Assembly
- 1- 90 Degree O2 Extension
- 1- Si Downpipe Specific
- 3- M10 Socket Head Bolts
- 3- Schnoor Washers
- 4- M10 Washers
NOTE: Version 2 allows users to retain the factory heat shield with our full 3″ (76mm) downpipe.