Page 256 - 2018 Racecar Engineering Drag Racing Parts and Accessories Catalog

SB Chevy Comp/Super Gas Strut Turndowns
Front Weld-Up Header Kit Slips over existing exhaust pipe or collector end for a slight
noise reduction.
Part No. Description
DTH780-00100 Turndown, 3" Dia.
DTH780-00200 Turndown, 3-1/2" Dia.
DTH780-00050 Turndown, 4" Dia.
Collector Extension
DTH780-00314
Collector extensions help increase bottom end torque for quicker
Weld-up header kit for popular small block Chevys offers 60’ times. Extension is 3" dia. x 14" long. Sold each.
optimized port exit angle and stepped 1-7/8"-2" primary tubes
for increased horsepower. Kit is tack welded to ease changes or Clamp Collars
perform finish welding. Sold complete with CNC laser-cut flanges, Connect collector extensions, X-pipes or
pre-bent primary tubes, gaskets and bolts. Collectors must be mufflers without welding.
purchased separately.
Part No. Description
Part No. Description Tube Size Collector Dia. DTH794-90200 Clamp Collar Kit, 3" Dia.
DTH762-91510 Weld-Up Header Kit 1-7/8”-2” 3-1/2” DTH794-90350 Clamp Collar Kit, 3-1/2" Dia.
DTH794-90400 Clamp Collar Kit, 4" Dia.
Slip-On Collectors
Bolt-on, right out of the box. Mild V-Clamp Kits
steel construction collectors are 12" Special V-clamps ease the installation or removal of custom
in length and each have an e-vac exhaust systems. Ideal when adding collector extensions, muf-
bung for easy installation of a crank- flers, etc. Offered for 2-1/2" or 3" tubing, each kit includes two
case evacuation system or an oxygen weld-on, V-clamp rings and stainless steel V-band
sensor. Choose from black painted or clamp.
silver ceramic coated. Sold each. Part No. Description
DTH794-91225 V-Clamp Collar Assembly, 2-1/2" Dia.
Slips Outlet Black Painted Silver Ceramic Coated DTH794-91230 V-Clamp Collar Assembly, 3" Dia.
Over Size Part No. Part No.
2-1/4” 4” DTH783-71240 —
2-3/8” 4” — DTH783-81241 Racing Header Gaskets
2-3/8” 4-1/2” DTH783-81245 DTH783-81246 Custom die cut gaskets per-
2-1/2” 4-1/2” — DTH783-91246 fectly match Dynatech header
2-1/2” 5” DTH783-91250 — flanges. Sold individually.
Part No. Description
Merge Collectors DTH794-00000 SB Chevy, Spread Port
Unique reduction angle provides 5-10 DTH794-00001 SB Chevy, Std. Port 23°
added horsepower and increases torque. DTH794-03001 SB Chevy, 18°/Dart
Slip-on style, black painted collectors are
sold individually.
Part No. Slips Over Outlet Size
DTH780-01514 1-3/4” 3” Racing Header
DTH780-02518 2-1/4” 4” Accessories
DTH780-03519 2-3/8” 4-1/2”
DTH780-03510 2-1/2” 4-1/2” Part No. Description
DTH780-03519 2-3/8" 4-1/2" DTH785-10094 18mm O2 Plug
DTH780-03510 2-1/2' 4-1/2" DTH785-10095 O2 Sensor/Pan E-Vac Kit Cylinder Head Shown
DTH785-10097 18mm Weld-On Bung With DTH796-00100
DTH796-00100 SB Chevy Stahl Header Adapter Installed

Split-Flow Race Mufflers Vortex Cone Muffler
Straight-thru muffler reduces the The Vortex Cone Muffler is Installed into the
decibel level of powerful street or strip header collector near the exit. This compact
engines and still maintains a powerful 304 stainless steel cone insert reduces noise
sound. Lightweight, aluminized muffler has dual pattern core level without robbing horsepower. The unique
with stainless steel sound absorbing material to prevent burnout. perforated and diagonal baffled design creates a
Available in oval and round styles. vortex flow which does not affect backpressure
Part No. Description Inlet Outlet or scavenge performance. Ultra lightweight only
Oval Race Muffler (14" L x 7" W x 4-1/2' H) a 1/2 pound of performance. Includes mounting
DTH776-14252 Split-Flow Muffler 2-1/2" 2-1/2" hardware. Sold Each.
DTH776-14302 Split-Flow Muffler 3" 3" Part No. Size
DTH776-14352 Split-Flow Muffler 3-1/2" 3-1/2"
DTH776-14402 Split-Flow Muffler 4" 4" DTH772-32520 3” x 4.750” Long
Round Race Muffler (6" L x 5" Dia.) DTH772-32530 4” x 7.250” Long
DTH776-06302 Split-Flow Muffler 3" 3" DTH772-32540 4.5” x 7.375” Long
DTH776-06352 Split-Flow Muffler 3-1/2" 3-1/2"
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