// WHY THIS PART EARNS ITS SPOT

Handcrafted Muffler

Precision Fitment and Installer-Friendly Design

16-Gauge Aluminized Steel Construction

High-Heat Premium Powder Coat Finish

Improved Flow Characteristics

3-Year Limited Warranty

// THE FULL RUNDOWN

Street Flow Aluminized 3 Chamber Performance Muffler Audi | Chevrolet | Dodge | Ford | GMC | Jeep | Nissan 1955-2022 SF42551 | Vivid Racing A 100% North American-Made product for the world of high performance! Street Flow delivers the classic rumble that will complement any muscle car or performance truck! Built from 16-gauge aluminized steel and finished with a silver premium powder coat finish for durability and longevity. The 3/8” unpainted ports provide an installer-friendly design which will only make the job easier! All Three Chamber mufflers deliver a smooth deep exterior tone slightly above stock along with a mellow interior sound level. Features: Specifications: Fitment: Proposition 65 ⚠ WARNING: Cancer and Reproductive Harm https://www.P65Warnings.ca.gov

// WILL IT FIT? THE STRAIGHT ANSWER

VEHICLE	YEARS	TRIM
Audi A4	2002-2010	Luxury
Audi A4	2002-2010	Base
Audi A4	2002-2004	Confort
Audi A4	2003-2006	Vangard
Audi A4	2003-2009	Cabriolet
Audi A4	2003-2006	Cabrio
Audi A4	2004-2008	S Line
Audi A4	2005-2007	Elite
Audi A4	2005-2007	S Line Sport
Audi A4	2005-2010	Trendy
Audi A4	2006	Limited Edition
Audi A4	2007-2008	Cabrio S Line
Audi A4	2007-2008	Cabrio Elite
Audi A4	2008-2010	Trendy Plus
Audi A4	2009-2010	Sport
Chevrolet Bel Air	1955-1956	Beauville
Chevrolet Bel Air	1955-1957	Base
Chevrolet Bel Air	1955-1957	Nomad
Chevrolet Chevelle	1973	Malibu Estate
Chevrolet Chevelle	1973-1977	Malibu
Chevrolet Chevelle	1974-1976	Malibu Classic Estate
Chevrolet Chevelle	1974-1977	Malibu Classic
Chevrolet Colorado	2015	LTZ
Chevrolet Colorado	2015-2022	WT
Chevrolet Colorado	2015-2022	LT
Chevrolet Colorado	2015-2020	Base
Chevrolet Colorado	2015-2022	Z71
Chevrolet Colorado	2017-2022	ZR2
Chevrolet Colorado	2021-2022	Z71 LT
Chevrolet Corvette	1970-1974, 1977-1980	Base
Chevrolet Corvette	1975-1976	Stingray
Chevrolet Corvette	1978	Silver Anniversary Edition
Chevrolet Corvette	1978	Indianapolis 500 Pace Car
Chevrolet El Camino	1973-1977	Base
Chevrolet El Camino	1973-1974	Custom
Chevrolet El Camino	1973-1977	SS
Chevrolet El Camino	1975-1977	Classic
Chevrolet El Camino	1977	Conquista
Chevrolet Impala	2000-2005	LS
Chevrolet Impala	2000-2005	Base
Chevrolet Impala	2003	LS Sport
Chevrolet Impala	2003-2005	Police
Chevrolet Impala	2004-2005	SS
Chevrolet Malibu	1978-1980	Classic Estate
Chevrolet Malibu	1978-1981	Base
Chevrolet Malibu	1978-1981	Classic Landau
Chevrolet Malibu	1978-1983	Classic
Chevrolet Malibu	1979-1980	Classic Sport
Chevrolet Malibu	1979	Police
Chevrolet Malibu	1979-1980	Sport
Chevrolet Malibu	1979	Landau
Chevrolet Malibu	1979-1980	Estate
Chevrolet Trailblazer	2006-2008	Base
Chevrolet Trailblazer	2006-2009	SS
Chevrolet Trailblazer	2006-2007	A
Chevrolet Trailblazer	2006-2007	B
Chevrolet Trailblazer	2006-2007	LS
Chevrolet Trailblazer	2006-2009	LT
Chevrolet Trailblazer EXT	2006	LS
Chevrolet Trailblazer EXT	2006	Base
Chevrolet Trailblazer EXT	2006	LT
Chevrolet Trailblazer EXT	2006	B
Dodge W250	1981-1991	Base
Dodge W350	1981-1987	Base
Ford Fairlane	1960-1970	500
Ford Fairlane	1960-1969	Base
Ford Fairlane	1966-1967	500XL
Ford Flex	2009-2012	SEL
Ford Flex	2009-2012	SE
Ford Flex	2009-2012	Limited
Ford Flex	2011-2012	Titanium
Ford Ranger	1983-1986, 1993-1994	XL
Ford Ranger	1983-1994	XLT
Ford Ranger	1983-1985	XLS
Ford Ranger	1983, 1985-1986	Base
Ford Ranger	1984, 1986-1992	S
Ford Ranger	1986-1994	STX
Ford Ranger	1987-1992	Custom
Ford Ranger	1988-1989	GT
Ford Ranger	1990	S Plus

+ 40 MORE APPLICATIONS — CONTACT US TO CONFIRM YOURS

JAP FITMENT PROMISE // If we confirm fitment for your rig and it doesn't fit, return shipping is on us. No restocking fee. That's the deal.

// GETTING IT TO YOUR GARAGE

THIS PART //

Ships UPS/FedEx ground — estimated $14.95. Additional ground items in the same order ship at reduced rates. Exact rate calculated at checkout.

REAL-COST SHIPPING

We charge what the carrier charges — no padding, no games. Ground parcels via UPS/FedEx, signature required. You see the exact number before you pay.

1-2 DAY HANDLING

Most in-stock parts leave the warehouse within 1-2 business days. Built-to-order parts show extended lead times.

LTL FREIGHT FOR THE BIG STUFF

Bumpers, hardtops, axles and full kits ship LTL truck freight (typically $400-500 per unit, plus shipping protection). Freight is charged per unit — two bumpers means two freight charges. Inspect before signing and note any damage on the delivery receipt.

30-DAY RETURNS

Unused, uninstalled parts in original packaging within 30 days. RMA required — start with a quick message. Shipping charges are non-refundable; freight returns quote at carrier rates.

FULL SHIPPING & RETURNS POLICY

// PAY YOUR WAY

CHECKING PAYMENT NETWORK…

ALL MAJOR CARDS + WALLETS

Visa, Mastercard, Amex, Discover, Apple Pay, Google Pay and Link one-tap checkout — live in our Stripe checkout right now. Card numbers never touch our servers.

BUY NOW, PAY LATER — LIVE

Klarna, Afterpay and Zip are active at checkout on eligible orders. Pick your split at payment — get the lift now, pay as you wheel. No JAP paperwork, approval happens right in checkout.

CRYPTO — LIVE AT CHECKOUT

Pay with crypto directly in our Stripe checkout — select the crypto option at payment and settle in USDC and supported coins. On-chain payment, standard order flow, same warranty.

3-D SECURE + RADAR ANTI-FRAUD

Every card payment runs Stripe Radar machine-learning fraud screening, with 3-D Secure (Visa Secure / Mastercard Identity Check) stepping in automatically when your bank requires it. Your card, verified by your bank.

PCI-DSS L1

HIGHEST CARD-SECURITY CERTIFICATION

AES-256 + TLS 1.3

ENCRYPTED IN TRANSIT & AT REST

TOKENIZED

WE NEVER SEE YOUR CARD NUMBER

Payments are processed by Stripe — the same infrastructure behind Amazon, Ford and Shopify checkouts. Dispute protection and receipt trails on every order. See our Privacy Policy.

// COVERED WHEN IT COUNTS

THIS PART //

Backed by the full Street Flow Aluminized manufacturer warranty. JAP is an authorized dealer — your warranty is valid from day one.

FULL MANUFACTURER WARRANTY

Every part ships new in the box with the manufacturer's standard warranty — terms and duration vary by brand (typically 1 year to limited lifetime on hard parts). We only sell through authorized channels, so coverage is never voided by gray-market sourcing.

WE RUN THE CLAIM WITH YOU

Warranty issue? Don't fight the manufacturer's phone tree alone. Hit our team with your order number and photos — we open the claim with the brand and stay on it until it's resolved.

WHAT WARRANTY DOESN'T COVER

Defects in materials and workmanship are covered. Trail damage, improper installation, modification, and normal wear items (bushings, pads, wear plates) generally are not — that's standard across every brand we carry.

SEPARATE FROM RETURNS

Warranty claims (defects after use) and returns (unused parts within 30 days) are different lanes. Not sure which applies? Message us first — we'll route it the fast way.

START A WARRANTY CLAIM

FITMENT	Jeep - See Description
BRAND	Street Flow Aluminized — shop all Street Flow Aluminized parts →
PART #	SF42551
SKU	SF42551
CATEGORY	Exhaust Parts > Mufflers
AVAILABILITY	IN STOCK
RETURNS	30-day return window

Street Flow Aluminized 3 Chamber Performance Muffler Audi | Chevrolet | Dodge | Ford | GMC | Jeep | Nissan 1955-2022