| THY-358Y-C / 1955-1957 Chevy Bel Air / Nomad / 210 LS Swap Tri-Y Headers 4.8L-6.2L | lgbilletusa.com | 25239.51 USD | — | — |
| THY-322Y-C / 1961-1966 (& 1987-1991) Chevy/GM Truck - LS Swap Long Tube TRI-Y Headers 4.8L-6.2L | lgbilletusa.com | 25239.51 USD | — | — |
| THY-364Y-C / 1973-1987 GM Pickup Truck 265-400cu in 4WD (no y-pipe) | lgbilletusa.com | 25239.51 USD | — | — |
| THY-324Y-C / 1967-1972 GM C10 Pickup Truck LS Series Motor Swap 4.8L-6.2L (1-5/8" Primary Tubes) | lgbilletusa.com | 23127.42 USD | — | — |
| THY-323Y-C / 1967-1987 Chevy/GMC Truck - LS Swap Long Tube TRI-Y Headers 4.8L-6.2L | lgbilletusa.com | 23127.42 USD | — | — |
| THY-360Y-C / 1955-1960 Chevy/GM 3100 Series Trucks - LS Swap Tri-Y Headers 4.8L-6.2L | lgbilletusa.com | 23127.42 USD | — | — |
| THY-346-C / 1964-1967 Chevy Chevelle 4.8L-6.2L LS Motor Swap 4-1 Mid-Length Headers | lgbilletusa.com | 21015.33 USD | — | — |
| THY-224-C / 2015-2019 Ford 150/250/350 5.0L 2WD and 4WD | lgbilletusa.com | 19832.56 USD | — | — |
| THY-151-C / Long Tube Headers with Adapters 1968-1974 Charger / Coronet / Super Bee / Road Runner / Satellite / GTX 1970-1974 Challenger / Cuda 361-440 V8 (non Hemi) | lgbilletusa.com | 19811.43 USD | — | — |
| THY-309-1-C / Universal LS Motor Swap Short Tube Headers 4.8L-6.2L (Rear Swept Exit) | lgbilletusa.com | 18903.23 USD | — | — |
| THY-361-C / 1961-1964 Chevy Impala - LS Engine Swap Headers 4.8L-6.2L | lgbilletusa.com | 17424.77 USD | — | — |
| THY-214Y-FI1-S-C / 1988-92 Ford class A motorhome F250/F350 pickup truck 460 F.I.2/4 wd (w/smog fittings) | lgbilletusa.com | 1494.56 USD | — | — |
| THY-563-SS-C / 2005-2009 Toyota 4Runner / Lexus GX470 4.7L Short Tube Headers | dougthorleyheaders.com | 1485 USD | — | — |
| THY-560Y-C / 2007-2019 Toyota Tundra / Land Cruiser 200 Series 5.7L Tri-Y Short Tube Headers | dougthorleyheaders.com | 1468 USD | — | — |
| THY-562-SS-C / 2005-07 Toyota Land Cruizer 100 Series 4.7L w/ VVT-1 2/4 wd | dougthorleyheaders.com | 1450 USD | — | — |
| THY-507-S-C / 1995-04 Toyota Tacoma / 1995-02 4Runner / 2000-04 Tundra 3.4L 2/4wd (With External EGR Tube) | dougthorleyheaders.com | 1450 USD | — | — |
| THY-214Y-FI5-S-C / 1993-1995 Ford F250/350 pickup truck 460 F.I.(with air injections) (W/SMOG FITTINGS) | lgbilletusa.com | 1436.07 USD | — | — |
| THY-214Y-FI6-S-C / 1996-1997 Ford F250/350 pickup truck 460 F .I. 2/4 wd (W/SMOG FITTINGS) | lgbilletusa.com | 1436.07 USD | — | — |
| THY-560Y-L-C / 2007-2019 Toyota Tundra 5.7L 2/4 wd (RACE Use Only) | dougthorleyheaders.com | 1421 USD | — | — |
| THY-214Y-FI4-S-C / 1993-1995 Ford class A motorhome 460 F.I.(with air injection) (W/SMOG FITTINGS) | lgbilletusa.com | 1418.61 USD | — | — |
| THY-563Y-LS-C / 2005-2009 Toyota 4Runner/ Lexus GX470 4.7L Stainless Steel Long Tube Tri-Y Headers | dougthorleyheaders.com | 1329 USD | — | — |
| THY-563-SS-C / 2005-2009 Toyota 4Runner / Lexus GX470 4.7L Short Tube Headers | lgbilletusa.com | 1296.39 USD | — | — |
| THY-564-SS-C / 2003-04 Toyota 4Runner / Lexus GX470 4.7L Short Tube Headers | dougthorleyheaders.com | 1285 USD | — | — |
| THY-564Y-LS-C / 2003-2004 Toyota 4Runner / Lexus GX470 4.7L 2/4 wd Long Tubes w/02 Extensions | dougthorleyheaders.com | 1285 USD | 1,095 USD | — |
| THY-339Y-C / 2010-2014 Chevy Camaro SS 6.0L-6.2L V8 (RACE Use Only 1-7/8" Primary Tubes) | dougthorleyheaders.com | 1255 USD | — | — |
| THY-214Y-FI3-C / 1993-5-95 Ford class C motorhome 460 F.I.(with air injection) (NO SMOG FITTINGS) | lgbilletusa.com | 1250.12 USD | — | — |
| THY-560Y-L-C / 2007-2019 Toyota Tundra 5.7L 2/4 wd (RACE Use Only) | lgbilletusa.com | 1240.52 USD | — | — |
| THY-214Y-FI5-C / 1993-1995 Ford F250/350 pickup truck 460 F.I.(with air injections) (NO SMOG FITTINGS) | lgbilletusa.com | 1234.41 USD | — | — |
| THY-214Y-FI6-C / 1996-1997 Ford F250/350 pickup truck 460 F .I. 2/4 wd (NO SMOG FITTINGS) | lgbilletusa.com | 1234.41 USD | — | — |
| THY-214Y-FI4-C / 1993-5-95 Ford class A motorhome 460 F.I.(with air injection) (NO SMOG FITTINGS) | lgbilletusa.com | 1216.07 USD | — | — |
| THY-507-C / 1995-2004 Toyota Tacoma / 1995-2002 4Runner / 2000-04 Tundra 3.4L Headers w/ Y-pipe | dougthorleyheaders.com | 1195 USD | — | — |
| THY-364Y-C / 1973-87 GM pickup truck 1/2ton /1973-91 pickup truck 3/4 & 1 ton 265-400 4wd (no y-pipe) | dougthorleyheaders.com | 1195 USD | — | — |
| THY-358Y-C / 1955-1957 Chevy Bel Air / Nomad / 210 LS Swap Tri-Y Headers 4.8L-6.2L | dougthorleyheaders.com | 1195 USD | — | — |
| THY-322Y-C / 1961-1966 (& 1987-1991) Chevy/GM Truck - LS Swap Long Tube Tri-Y Headers 4.8L-6.2L | dougthorleyheaders.com | 1195 USD | — | — |
| THY-481Y-LS-C / 2010-2018 Nissan Patrol / Infiniti QX56 5.6L (400HP) T304 Tri-Y Headers | dougthorleyheaders.com | 1187 USD | — | — |
| THY-328-C / Sandrail Rear Exit LS Motors 4.8L-6.2L | dougthorleyheaders.com | 1162 USD | — | — |
| THY-563Y-LS-C / 2005-2009 Toyota 4Runner/ Lexus GX470 4.7L Stainless Steel Long Tube Tri-Y Headers | lgbilletusa.com | 1160.2 USD | — | — |
| THY-561-SS-C / 1998-2004 Toyota Land Cruiser 100 Series / Lexus LX470 4.7L Short Tube Headers | dougthorleyheaders.com | 1128 USD | — | — |
| THY-564-SS-C / 2003-04 Toyota 4Runner / Lexus GX470 4.7L Short Tube Headers | lgbilletusa.com | 1121.79 USD | — | — |
| THY-339Y-C / 2010-2014 Chevy Camaro SS 6.0L-6.2L V8 (RACE Use Only 1-7/8" Primary Tubes) | lgbilletusa.com | 1095.6 USD | — | — |