THUNDERHEADER Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields – 1074S

Thunderheader Chrome Long Style High-Performance 2-Into-1 Exhaust System with Heat Shields – 1074S

Designed to give maximum horsepower without sacrificing low-end torque

2-into-1 systems with patented collector design that directs spent exhaust gases in a spiral motion through four acoustical damping chambers

Exhaust travels through these chambers at high velocity to scavenge spent exhaust gases from the combustion chamber and bring in a fresh charge of air/fuel mixture

Anti-reversion design works to impede reverse flow through the system — reverse flow can contaminate the incoming fuel/air mixture, which reduces performance and throttle response

As reverse flow enters the collector, the diffuser deflects it through vents; the pyramidal trap and apertures impede the reverse flow, allowing time for the exhaust valve to close

Flow director has equal area at each end, allowing exhaust gases to travel at a constant velocity over the entire length to improve exhaust scavenging

Includes a set of full-coverage heat shields

 

 

Included Items:

(1) Chrome head pipe assembly with heat shields

 

(1) Chrome heat shield

 

(1) Chrome muffler assembly

 

(1) Black steel mounting bracket

 

(1) Chrome steel 1-3/4″ Pinch clamp

 

(1) 2-5/8″ Chrome exhaust clamp

 

(1) Chrome hose clamp # 56

 

(2) Chrome hose clamps # 40

 

(6) Chrome hose clamps # 24

 

(1) 5/16″-18 x 1-1/2″ Hex head bolt

 

(2) 5/16″-18 x 1″ Hex head bolt

 

(6) 5/16″ Flat washers

 

(1) 5/16″ Split lock washer

 

(1) 5/16″-18 Hex nut

 

(2) 5/16″-18 Nylock nuts

 

(1) Black round aluminium spacer

(1) Black steel spacer

(1) 3/8″-16 x 3″ Socket cap head bolt

(2) 3/8″-16 x 1-3/4″ Socket cap head bolts

Specifications

Color Chrome

Mfg #: 1074S

Part #: 4408743

Style Straight-Cut Tip

Type 2-Into-1 System

Units Each

Weight 25.30 lbs