SuperMaxx 2007-09 Hummer H2 Intermediate Tubes w/ Cats

							                        

                                                        
Gain a 106% increase in flow over the factory exhaust system!  Dynatech® SuperMaxx stainless steel exhaust systems are engineered to  give your Chevy Silverado/GMC Sierra 1500 or Hummer H2 V8 maximum performance both on  and off road. These full length headers are designed to be a direct replacement fit for restrictive  factory exhaust and catalytic converter systems, these systems are a  great way to get that extra power you are looking for. 
Primary Tube Size: 1-3/4"
Collector Size: 2-1/2"
System Tube Size: 2-1/2"
Material: T-304 Stainless Steel
OBD II Compliant: Yes
Hardware Included: Gaskets, Bolts, O2 Extensions
Fit: Direct Bolt-Up to any factory or aftermarket cat back 
 For ceramic coating, add Dynatech® Ceramic Coating part number 31179000100 to your cart. 
2007-2008 Chevy Headers Installation Instructions (PDF) 
                                                    

						                        

							                        

                                                        
Bolt-on an additional 17 HP** over the factory exhaust system!  Dynatech® SuperMaxx stainless steel exhaust systems are engineered to  give your Chevy Silverado/GMC Sierra 1500 or Hummer H2 V8 maximum performance both on  and off road. These full length headers are designed to be a direct replacement fit for restrictive  factory exhaust and catalytic converter systems, these systems are a  great way to get that extra power you are looking for. 
Primary Tube Size: 1-3/4"
Collector Size: 2-1/2"
System Tube Size: 2-1/2"
Material: T-304 Stainless Steel
OBD II Compliant: Yes
Hardware Included: Gaskets, Bolts, O2 Extensions
Fit: Direct Bolt-Up to any factory or aftermarket cat back 
 For ceramic coating, add Dynatech® Ceramic Coating part number 31179000100to your cart. 
**Dyno tested using a factory cat-back/muffler in a 5.3L application.  
4.8L & 5.3L Instructions (PDF) 
6.0L Instructions (PDF) 
                                                    

						                        

							                        

                                                        
Gain up to 21 HP and 9 Ft. Lbs. over the factory exhaust system! Dynatech® SuperMaxx stainless steel exhaust systems are engineered to give your Chevy Trailblazer SS or GMC Envoy Vortec V8 winning performance both on and off the track. These full length headers are designed to be a direct replacement fit for restrictive factory exhaust and catalytic converter systems, these systems are a great way to get that extra power you are looking for.
Primary Tube Size: 1-3/4"
Collector Size: 3"
System Tube Size: 2-1/2"
Material: T-304 Stainless Steel
OBD II Compliant: Yes
Hardware Included: Gaskets, Bolts, O2 Extensions
Fit: Direct Bolt-Up to any factory or aftermarket cat back 
For ceramic coating, add Dynatech® Ceramic Coating part number 31179000100.
Instructions (PDF)
                                                    

						                        

							                        

                                                        
Gain a 106% increase in flow over the factory exhaust system!  Dynatech® SuperMaxx stainless steel exhaust systems are engineered to  give your Hummer H2 6.2L Vortec maximum performance both on and off  road. Designed to be a direct replacement fit for restrictive factory  exhaust and catalytic converter systems, these systems are a great way  to get that extra power you are looking for. 
System Tube Size: 2-1/2"
Material: T-304 Stainless Steel
OBD II Compliant: Yes
Hardware Included: Gaskets, Bolts, O2 Extensions
Fit: Direct Bolt-Up to any factory or aftermarket cat back 
Instructions (PDF)  
 
                                                    

						                        

							                        

                                                        
Gain a 106% increase in flow over the factory exhaust system!  Dynatech® SuperMaxx stainless steel exhaust systems are engineered to  give your Hummer H2/ Chevy truck/ SUV 6.0L Vortec maximum performance both on and off  road. Designed to be a direct replacement fit for restrictive factory  exhaust and catalytic converter systems, these systems are a great way  to get that extra power you are looking for.
System Tube Size: 2-1/2"
Material: T-304 Stainless Steel
OBD II Compliant: Yes
Hardware Included: Gaskets, Bolts, O2 Extensions
Fit: Direct Bolt-Up to any factory or aftermarket cat back 
Instructions (PDF) 
                                                    

						                        

							                        

                                                        
Gain a 106% increase in flow over the factory exhaust system!  Dynatech® SuperMaxx stainless steel exhaust systems are engineered to  give your Hummer H2 6.2L Vortec maximum performance both on and off  road. Designed to be a direct replacement fit for restrictive factory  exhaust and catalytic converter systems, these systems are a great way  to get that extra power you are looking for. 
System Tube Size: 2-1/2"
Material: T-304 Stainless Steel
OBD II Compliant: Yes
Hardware Included: Gaskets, Bolts, O2 Extensions
Fit: Direct Bolt-Up to any factory or aftermarket cat back 
Instructions (PDF)