Connecting your Speed Engineering longtube headers to the cat-back on your GMT900 Silverado or Sierra? This is the Y-pipe that completes the system. Built from 3" mandrel bent 304 natural stainless steel with a 3.5" exit, an optional 3" reducer, TIG-welded construction, and stainless band clamps included. An optional wideband O₂ bung is available for tuning applications.
⚠️ Important Notes:
- Designed for use with Speed Engineering longtube headers only — NOT compatible with factory exhaust manifolds
- Works with 6 speed automatic transmissions
- Depending on factory exhaust type, some cutting or welding may be required for installation
Features:
- 3" Mandrel Bent Tubing — Consistent diameter throughout for maximum exhaust flow
- 3.5" Y-Pipe Exit with Optional 3" Reducer — Flexibility to connect to standard 3" cat-back systems
- Optional Wideband Tuning Bung — Available for wideband O₂ sensor placement for tuning applications
- Stainless Steel Band Clamps Included
- 304 Natural Stainless Steel Construction — Corrosion resistant, heat tolerant, and built to last
- Dyno Proven
Vehicle Applications:
Chevrolet Silverado 1500 (2WD/4WD)
- 2007 Chevrolet Silverado 1500 (2WD/4WD) ⚠️ New body style only, not Classic
- 2008 Chevrolet Silverado 1500 (2WD/4WD)
- 2009 Chevrolet Silverado 1500 (2WD/4WD)
- 2010 Chevrolet Silverado 1500 (2WD/4WD)
- 2011 Chevrolet Silverado 1500 (2WD/4WD)
- 2012 Chevrolet Silverado 1500 (2WD/4WD)
- 2013 Chevrolet Silverado 1500 (2WD/4WD)
GMC Sierra 1500 (2WD/4WD)
- 2007 GMC Sierra 1500 (2WD/4WD) ⚠️ New body style only, not Classic
- 2008 GMC Sierra 1500 (2WD/4WD)
- 2009 GMC Sierra 1500 (2WD/4WD)
- 2010 GMC Sierra 1500 (2WD/4WD)
- 2011 GMC Sierra 1500 (2WD/4WD)
- 2012 GMC Sierra 1500 (2WD/4WD)
- 2013 GMC Sierra 1500 (2WD/4WD)
Chevrolet Tahoe (2WD/4WD)
- 2007 Chevrolet Tahoe (2WD/4WD)
- 2008 Chevrolet Tahoe (2WD/4WD)
- 2009 Chevrolet Tahoe (2WD/4WD)
- 2010 Chevrolet Tahoe (2WD/4WD)
- 2011 Chevrolet Tahoe (2WD/4WD)
- 2012 Chevrolet Tahoe (2WD/4WD)
- 2013 Chevrolet Tahoe (2WD/4WD)
- 2014 Chevrolet Tahoe (2WD/4WD)
GMC Yukon (2WD/4WD)
- 2007 GMC Yukon (2WD/4WD)
- 2008 GMC Yukon (2WD/4WD)
- 2009 GMC Yukon (2WD/4WD)
- 2010 GMC Yukon (2WD/4WD)
- 2011 GMC Yukon (2WD/4WD)
- 2012 GMC Yukon (2WD/4WD)
- 2013 GMC Yukon (2WD/4WD)
- 2014 GMC Yukon (2WD/4WD)
Cadillac Escalade (2WD/4WD)
- 2007 Cadillac Escalade (2WD/4WD)
- 2008 Cadillac Escalade (2WD/4WD)
- 2009 Cadillac Escalade (2WD/4WD)
- 2010 Cadillac Escalade (2WD/4WD)
- 2011 Cadillac Escalade (2WD/4WD)
- 2012 Cadillac Escalade (2WD/4WD)
- 2013 Cadillac Escalade (2WD/4WD)
- 2014 Cadillac Escalade (2WD/4WD)
Cadillac Escalade EXT (2WD/4WD)
- 2007 Cadillac Escalade EXT (2WD/4WD)
- 2008 Cadillac Escalade EXT (2WD/4WD)
- 2009 Cadillac Escalade EXT (2WD/4WD)
- 2010 Cadillac Escalade EXT (2WD/4WD)
- 2011 Cadillac Escalade EXT (2WD/4WD)
- 2012 Cadillac Escalade EXT (2WD/4WD)
- 2013 Cadillac Escalade EXT (2WD/4WD)
- 2014 Cadillac Escalade EXT (2WD/4WD)
Chevrolet Avalanche (2WD/4WD)
- 2007 Chevrolet Avalanche (2WD/4WD)
- 2008 Chevrolet Avalanche (2WD/4WD)
- 2009 Chevrolet Avalanche (2WD/4WD)
- 2010 Chevrolet Avalanche (2WD/4WD)
- 2011 Chevrolet Avalanche (2WD/4WD)
- 2012 Chevrolet Avalanche (2WD/4WD)
- 2013 Chevrolet Avalanche (2WD/4WD)
- 2014 Chevrolet Avalanche (2WD/4WD)
FAQ
Will this Y-pipe work with my factory exhaust manifolds?
No. This Y-pipe is designed for use with Speed Engineering longtube headers only. It is not compatible with factory exhaust manifolds.
Will this Y-pipe work with my transmission?
This Y-pipe works with 6 speed automatic transmissions. Depending on your factory exhaust type, some cutting or welding may be required for proper installation.
What is the exit diameter on this Y-pipe?
This Y-pipe features a 3.5" exit with an optional 3" reducer available for connecting to standard 3" cat-back systems.
Is a wideband O₂ bung included?
An optional wideband O₂ bung is available for wideband sensor placement for tuning applications.
What material is this Y-pipe made from?
304 natural stainless steel with mandrel-bent tubing and TIG-welded construction. Stainless band clamps are included.
Is this Y-pipe street legal?
No. This is a race-only product intended for closed-course competition use only. Installation on a street-driven vehicle may violate the Clean Air Act (42 U.S.C. 7522(a)(3)).
⚠️ Race Use Only: This product is manufactured and sold for installation on vehicles used solely for competition. Once installed, the vehicle may not be used, registered, or licensed for use on a public road or highway. Installation on a street-driven vehicle may violate the Clean Air Act 203(a)(3), 42 U.S.C. 7522(a)(3)
