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NEW STOCK! 911 RSR Style Stainless Steel Exhaust Header Set 1-3/4" 1.750" OD Primaries (EXH 911 RSR HS 134 PMS)

Marsoni M251S
Sale price$1283.50
Pay 4 payments of $320.88 a month.Shop Pay
Get it in 3 business days with 1 day shipping. Friday, May 29
NEW STOCK! 911 RSR Style Stainless Steel Exhaust Header Set 1-3/4" 1.750" OD Primaries (EXH 911 RSR HS 134 PMS)IN STOCK READY TO SHIP TODAY! 911 RSR Style Stainless Steel Exhaust Header Set 1 3 4 in. (44. 5mm) O. D. Primaries 1965 1989 Porsche 911 Motorsport Quality Fabricated 304 Stainless Steel Purged Tig Welded Pyramid Type Merge Collectors Billet Flanges Twin Bank System With Left and Right O2 Sensor Ports Ideal For 3. 4L 3. 5L 3. 6L 3. 8L 4. 0L Engine Connects Directly to Dual Inlet Early 911 RS RSR Style Mufflers See Part Numbers: EXH ESM (many variants)
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Your NEW STOCK! 911 RSR Style Stainless Steel Exhaust Header Set 1-3/4" 1.750" OD Primaries (EXH 911 RSR HS 134 PMS) orders ship within 1-2 business days.

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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
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4.7 ★★★★★
Based on 81 reviews
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A
Verified Purchase
Austin Williams
Boise, US
★★★★★ 5
Great bang for your buck!
Swapped out my old impeller and this helped fix my overheating issue. Super high quality, fit like a glove. If you know what you’re doing it’ll take you an hour tops. Super solid for the price! Fit into my 1990 alpha one gen 1 outdrive on my 4.3 Mercruiser.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 22, 2025
J
Verified Purchase
Jesse Simpson
Waukegan, US
★★★★★ 4
Decent Kit
It's a pretty decent kit. Comes with all the lower unit options whether yours needs that particular part or not.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 22, 2025
E
Verified Purchase
Eli
Houston, US
★★★★★ 5
Alpha one gen I
Good fit
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
H
Verified Purchase
Hank
Los Angeles, US
★★★★★ 5
Quality for the price
All necessary parts good quality
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 16, 2026
A
Verified Purchase
Amazon Customer
Lake Worth, US
★★★★★ 5
quality
prefect fit, best pricing over local outlets wanting twice as much
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 19, 2026

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