-7%

Flowtech 11585FLT GM V6 O-Port Upright Headers, 1-1/2 In Primary

-7%

#42511585FLT

Flowtech 11585FLT GM V6 O-Port Upright Headers, 1-1/2 In Primary

Mandrel bent tubes provide consistent tubing diameters for better exhaust pulse flow and improved performance
1-1/2 in. primary diameter for increased exhaust flow and improved throttle response
Heavy duty 16-gauge 409 Stainless Steel used for strength and durability

$249.95

Factory Shipped

$268.95

Save $19.00

Quantity

Need Help? Call to Order

Add to a list

Select a vehicle and engine to verify Fitment

Select Vehicle

Select Engine

Product Summary

Upswept Header Tube Type, Round Exhaust Port Shape, Raw

Mandrel bent tubes provide consistent tubing diameters for better exhaust pulse flow and improved performance
1-1/2 in. primary diameter for increased exhaust flow and improved throttle response
Heavy duty 16-gauge 409 Stainless Steel used for strength and durability
10 in. long, 2.5 in. collector improves exhaust flow
3/8 in. thick header flange for a leak-free seal and maximum strength

See more details

Key Specs

MFG. Part #	11585FLT
Header Tube Type	Upswept
Exhaust Port Shape	Round
Flange Style	Standard
Primary Tube Diameter	1-1/2"

See more specs

Need To Know

Need help?

855.313.9176

View the Help Center

Quick and Easy Returns

Return Policy

Flowtech Exhaust 11585FLT Details

These Flowtech upright derby style headers fit the 2.8L, 3.1L and 3.4L GM V6 engines with both round port or D-port style exhaust ports. 1-1/2 in. and 1-5/8 in. mandrel bent primary tubes provide consistent tubing diameters for smooth flow of the exhaust pulses and increase the cylinder scavenging of the exhaust to improve engine breathing. The headers are constructed from heavy duty 16-gauge 409 stainless steel tubing for increased strength and durability. These headers use a 10 in. long, 2.5 in. collector with 20 in. long primary tubes. The 3/8 in. thick header flange provides a leak-free seal and maximizes strength.

Features:

Mandrel bent tubes provide consistent tubing diameters for better exhaust pulse flow and improved performance
1-1/2 in. and 1-5/8 in. primary diameters available for increased exhaust flow and improved throttle response
Heavy duty 16-gauge 409 Stainless Steel used for strength and durability
10 in. long, 2.5 in. collector improves exhaust flow
3/8 in. thick header flange for a leak-free seal and maximum strength
Available for both round and D-port exhaust ports
Header gaskets included

Guides & Documents

Choosing the Right Headers

CARB Warning

For race/ off road use only

Emissions warning: this part only legal for sale or use in California for racing (competition) vehicles which may never be used, registered, or licensed for use upon a public highway. Any other use renders the vehicle tampered and not legal for use on California public highways (any public street or roadway, public dirt road, public park, or publicly maintained right of way open to the use of the public for vehicular travel). Violations subject to $37,500 penalty per violation per vehicle, revocation of registration, loss of use on California public right of ways, and proof of correction for tampering. There are similar restrictions and penalties under federal law and the laws of all other states with penalties under federal law of up to approximately $45,268 per tampered vehicle and/or engine.

CA WARNING:

Can expose you to lead, a carcinogen and reproductive toxicant. See www.P65Warnings.ca.gov

CARB warning

Flowtech Exhaust 11585FLT Specifications

KEY SPECS
MFG. Part #	11585FLT
Brand	Flowtech Exhaust
Header Tube Type	Upswept
Exhaust Port Shape	Round
Flange Style	Standard
Primary Tube Diameter	1-1/2"
Material Type	Stainless Steel
Color	Natural
Weld-Up	No
Collector Diameter	2-1/2 Inch
Finish	Raw
Hardware Included	No
Gasket(s) Included	Yes
Collector Reducers Included	No
Collector Attachment Type	Slip fit

GENERAL
Sold in Quantity	Pair
GTIN Code	090127072943
Collector Length	10"
Flange Thickness	0.375"
Tube Length	20"
Tuned	No
Crossover Pipe Included	No
Primary Tube Gauge	16-gauge
Transmission Mount Included	No
Catalytic Converter(s) Included	No
Motor Mounts Included	No

Ratings & Reviews

Be the first to write a review.

Questions & Answers

Be the first to ask a question.

Fitment

1982-1984 Chevy Camaro

GM LC1 2.8

1985-1989 Chevy Camaro

GM LB8 2.8

1990-1992 Chevy Camaro

Gen 1 2.8 LH0
GM LH0 3.1

1993 Chevy Camaro

Gen 1 2.8 LH0

1988-1989 Chevy Cavalier

GM LB6 2.8

1990-1994 Chevy Cavalier

GM LH0 3.1

2000-2005 Chevy Impala

GM LA1 3.4

1990 Chevy Lumina

GM LH0 3.1

1991-1994 Chevy Lumina

GM LH0 3.1
GM LQ1 3.4

1995-1997 Chevy Lumina

GM L82 3.1
GM LQ1 3.4

1998-1999 Chevy Lumina

GM L82 3.1

2000-2001 Chevy Lumina

GM LH0 3.1

1995-1997 Chevy Monte Carlo

GM L82 3.1
GM LQ1 3.4

1998-1999 Chevy Monte Carlo

GM L82 3.1

2000-2005 Chevy Monte Carlo

GM LA1 3.4

1982-1985 Chevy S10

GM LR2 2.8

1986-1993 Chevy S10

GM LL2 2.8

1983-1986 Chevy S10 Blazer

GM LR2 2.8

1987-1993 Chevy S10 Blazer

GM LL2 2.8

1985 GMC Jimmy

GM LR2 2.8

1991-1993 GMC Jimmy

GM LL2 2.8

1982 GMC S15

GM LR2 2.8

1986 GMC S15

GM LR2 2.8

1987-1990 GMC S15

GM LL2 2.8

1985 GMC S15 Jimmy

GM LR2 2.8

1986 GMC S15 Jimmy

GM LL2 2.8

1988-1990 GMC S15 Jimmy

GM LL2 2.8

1991-1993 GMC Sonoma

GM LL2 2.8

1984-1986 Jeep Cherokee

GM LR2 2.8

1985-1988 Pontiac Fiero

GM L44 2.8

1985 Pontiac Firebird

GM LB8 2.8

1997-1999 Pontiac Grand Prix

GM L82 3.1

2000-2003 Pontiac Grand Prix

GM LG8 3.1

1980-1984 Pontiac Phoenix

GM LE2 2.8