CAST LS EXHAUST MANIFOLDS, SILVER C

Name: CAST LS EXHAUST MANIFOLDS, SILVER C
Brand: Flowmaster
SKU: F00L 31730-1FLT
Price: 424.95 USD
Availability: InStock

$424.95

SKU: F00L 31730-1FLT

Special Order

Ships in 4–6 weeks

Free Shipping

Non-Returnable Item

DIY PRO SHOP

Moderate — 2–4 hours

Description

These Flowtech cast iron exhaust manifolds have a 2.25 inch outlet, natural cast finish and are designed to hug close to the engine block so they fit into a wide variety of replacement and engine-swap applications at a budget friendly price. Being cast iron means they will provide years of leak-free performance with less under hood noise than traditional headers. Plus, their shorty design means you can route exhaust tubing close to your frame/floor pan for maximum ground clearance.

Fitment

Fitment Guaranteed

Don’t gamble
on fit.

Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

Brand	Flowmaster
Part Number	F00L 31730-1FLT

Videos

Ls Swapped Chevelle gets 3 inch exhaust pipes with Flowmaster FX mufflers

CAMMED Chevy/GMC 5.3L V8: Headers+Magnaflow Vs Headers+Flowmaster!

LS1 SWAPPED GMC Sonoma w/ SHORTY HEADERS & FLOWMASTER SUPER 10s!

5.3L V-8-powered Jeep Wrangler TJ with flowmaster exhaust. LS swap the world!

Flowmaster Exhaust On Chevy 5.3 Install

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

View Full Return Policy