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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
Flowtech Upright Headers - 11551FLTOverview: Flowtech Headers are the perfect combination of quality and value. These Big Block Chevy Upright headers available in 2 1 4" tube diameters are ideal for even big cubic inch Big Block Chevy engines Features: CNC Mandrel bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing Heavy duty 16 gauge 409SS tubing for increased strength and durability 2 1 4 tubing
Overview:
Flowtech Headers are the perfect combination of quality and value. These Big Block Chevy Upright headers available in 2-1/4" tube diameters are ideal for even big cubic inch Big Block Chevy engines
Features:
- CNC Mandrel-bent tubes provide consistent tubing diameters for smooth flow and increases the cylinder scavenging effect and improves engine breathing
- Heavy duty 16-gauge 409SS tubing for increased strength and durability
- 2-1/4” tubing diameter for increased exhaust flow increasing performance and improved throttle response
- Extended 4” collector for maximum strength and exhaust flow
- Extra thick 7/16” header flange for a leak-free seal and maximum strength
- Welded-in collector merge spears to control exhaust gas re-entry into primary tubes
- Center of exhaust port to end of collector length is 33-1/2"
Application:
- 1975-1995 Chevrolet G30
- 1968-1986 Chevrolet C20 Suburban
- 1968-1985 Chevrolet K20 Suburban
- 1979-1995 GMC C2500 Suburban
- 1979-1995 GMC C2500
- 1979-1995 GMC C3500
- 1979-1995 GMC K3500
- 1968-1980 Chevrolet C10 Suburban
- 1975-1986 Chevrolet C20
- 1975-1986 Chevrolet C30
- 1967-1976 Chevrolet Caprice
- 1967-1976 Chevrolet Impala
- 1977-1986 Chevrolet K30
- 1967-1975 Chevrolet Bel Air
- 1967-1975 Chevrolet El Camino
- 1967-1975 Chevrolet Malibu
- 1967-1974 Chevrolet Corvette
- 1988-1995 GMC G3500
- 1988-1995 Chevrolet C3500
- 1988-1995 Chevrolet K3500
- 1968-1974 Chevrolet K20 Pickup
- 1968-1974 Chevrolet K30 Pickup
- 1968-1974 GMC C15/C1500 Pickup
- 1968-1974 GMC C15/C1500 Suburban
- 1968-1974 Chevrolet C20 Pickup
- 1968-1974 Chevrolet K10 Pickup
- 1968-1974 Chevrolet K10 Suburban
- 1968-1974 Chevrolet C30 Pickup
- 1967-1973 Chevrolet Chevelle
- 1968-1974 GMC C25/C2500 Pickup
- 1968-1974 GMC C25/C2500 Suburban
- 1968-1974 GMC C35/C3500 Pickup
- 1968-1974 GMC K15/K1500 Pickup
- 1968-1974 GMC K15/K1500 Suburban
- 1968-1974 GMC K25/K2500 Pickup
- 1968-1974 GMC K25/K2500 Suburban
- 1968-1974 GMC K35/K3500 Pickup
- 1968-1974 Chevrolet C10 Pickup
- 1975-1980 Chevrolet C10
- 1970-1975 Chevrolet Monte Carlo
- 1967-1972 Chevrolet Camaro
- 1967-1972 Chevrolet Biscayne
- 1991-1995 GMC K2500
- 1976-1980 Chevrolet K10
- 1991-1995 Chevrolet K2500
- 1991-1995 Chevrolet C2500
- 1987-1991 GMC R2500 Suburban
- 1987-1991 GMC R3500
- 1971-1975 GMC Sprint
- 1987-1991 GMC V3500
- 1990-1993 Chevrolet C1500
- 1969-1972 Chevrolet Kingswood
- 1975-1978 GMC C25 Suburban
- 1975-1978 GMC C35
- 1973-1976 GMC Jimmy
- 1992-1995 GMC K2500 Suburban
- 1992-1995 Chevrolet C2500 Suburban
- 1992-1995 Chevrolet K2500 Suburban
- 1975-1978 GMC C15
- 1975-1978 GMC C15 Suburban
- 1975-1978 GMC C25
- 1969-1972 Chevrolet Townsman
- 1969-1972 Chevrolet Brookwood
- 1992-1995 Chevrolet C3500HD
- 1976-1978 Chevrolet K5 Blazer
- 1989-1991 Chevrolet R2500 Suburban
- 1989-1991 Chevrolet R3500
- 1989-1991 Chevrolet V3500
- 1976-1978 GMC K25
- 1976-1978 Chevrolet K20
- 1973-1975 Chevrolet Laguna
- 1987-1989 GMC R2500
- 1987-1988 Chevrolet R20
- 1987-1988 Chevrolet R20 Suburban
- 1987-1988 Chevrolet R30
- 1987-1988 Chevrolet V20 Suburban
- 1987-1988 Chevrolet V30
- 1975-1976 GMC G25
- 1976-1977 GMC K25 Suburban
- 1973-1974 Chevrolet G10 Van
- 1973-1974 Chevrolet G20 Van
- 1973-1974 Chevrolet G30 Van
- 1979-1980 GMC C1500
- 1979-1980 GMC C1500 Suburban
- 1973-1974 GMC G35/G3500 Van
- 1969-1970 Chevrolet Nova
- 1973-1974 Chevrolet Blazer
- 1969-1970 Chevrolet Estate
- 1989 Chevrolet R2500
- 1990 Chevrolet V2500 Suburban
- 1976 GMC G35
- 1976 GMC K15
- 1980 GMC K1500
- 1976 Chevrolet G20
- 1968 Chevrolet Chevy II
Specs:
| Application | Big Block Chevy |
|---|---|
| Brand | Flowtech |
| Collector Diameter | 4.00 inch |
| Emission Code | 4 |
| Engine | Big Block Chevy |
| Finish | Natural |
| Header Finish | Natural |
| Header Style | Upright |
| Primary Tube Dia. | 2-1/4 inch |
| Product Type | Headers |
| Tube Material | 409 Stainless Steel |
| Warning | California Proposition 65 |
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.3 ★★★★★
Based on 597 reviews
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Product Reviews
★★★★★ 4
Overpriced but effective.
Color: Cream
I happened to get lucky and get a warehouse deal at an additional 30% discount. Even at $25, it feels a little overpriced. But it was easy to assemble and serves its purpose. If you line the Velcro up exactly, the panels sag, if you stretch past even, but where it still grips, they look pretty ok. It is very light and does fold very compact for easy storage.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 3, 2026
★★★★★ 5
Great price for a great product
Color: Coal Black
Excellent quality and great price to boot. Easy to assemble and folds up easily to be stored. We are using it as a privacy screen when we have company that needs to sleep on the couch and also to block off a hallway leading to a guest suite. It looks great and is as described in the ad
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on December 16, 2025
★★★★★ 1
No.
Color: Coal Black, Color: Coal Black
This was horribly made and a nightmare to put together. You have to basically bend the bars to get the coverings attached. The sizes don't match. The stickers that label the parts are impossible to remove and if you do get them off theres a lot of residue left behind. On top of that once it was put together I noticed theres a big dirty foot print on it which is definitely not mine.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 5, 2026
★★★★★ 3
You have to add weight to it
Color: Coal Black
It does its job and it was easy to put together but it's a little on the flimsy side and it will easily be knocked down. So you're going to have to figure out a way to make the legs heavier? I used cinder blocks, single cinder blocks and it works just fine. Just know that it will knock over super easy
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
★★★★★ 5
The snap to put them together.
Color: Coal Black
This came in handy in the foyer. I didn’t want to see the door from my couch. I must be weak found it hard to snap them together. I kept 2 my daughter took the other 2.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2026
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