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Yamaha RD250/350/400/R5/DS6/DS7 Parts
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Exhaust
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DG Expansion Chambers Exhaust RD350/400
DG Expansion Chambers Performance Exhausut for RD350 All Years and RD400 1976-1978. 13+/- hp increase, 10 pound weight reduction and bolt on easily. Steel construciton. Requires re-jetting of carburetors and new exhaust gaskets. Jets and exhaust gaskets are available here on the website.
Price: $299.99
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Exhaust Spring, Multiple Sizes, Sold Each
Exhaust springs by Moose Racing. Suitable for aftermarket exhaust / expansion chambers by, DG, Moto-Carrerra, Spec II and others. Available in multiple sizes (measurement is from hook to hook) 90MM fits most Yamaha RD/RZ applications. ***Sold each***
Price: $7.50
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Moose Fiberglass Exhaust Packing
Repack blown-out silencer for quieter running and more power Long-filament fiberglass made especially for muffler packing, suitable for aftermarket expansion chambers, Measures 11” x 16”, more than enough to repack virtually any 2-stroke silencer Made in the U.S.A.
Price: $7.95
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Moto Carrera Millenium GP Exhaust - RD350/400/250/R5
Production has resumed for the legendary RD expansion chamber, the Moto Carrera Millennium GP. Available for the RD250/350/400/R5/DS7. This is the most successful RD pipe of the last decade on road race circuits nationwide due to their hydroform design which is evident by it's smooth and curvy shape. It's sexy good looks sets these chambers apart from the rest, as does their snappy performance. They develop a broad torquey powerband from mid-range through the top-end providing snappy useable real-world horsepower. It's this torque that makes them so successful in competition. In fact Millennium GP's have won over 180 class wins and 17 national championships since they were introduced. That's more than all others combined! It's power output and cornering clearance will enhance your riding experience. Whether you are a spirited cafe racer that carves the canyons or a serious vintage road racer this pipe will bring out the best in your RD. Hydro formed in mild steel. Included exhaust flanges, springs and mounting hardware. Note: These exhausts are excluded from promotional discounts. Click add to cart and choose model.
Price: $749.99
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V1 Expansion Chambers by Vanguard - CURRENTLY UNAVAILABLE
Note: No Longer Available
V1 Stainless Steel Expansion Chambers for the RD350 by Vanguard, offered exclusively by Economy Cycle. These pipes are constructed entirely of stainless steel, including the header spigots and hardware with re-packable aluminum silencers. Laser cut, fully TIG welded and argon back-purged for the highest quality construction available. We use the finest materials, more than 10 hours of fabrication and welding goes into each set. The headers alone contain over 20 tapered separate sections to produce maximum unimpeded flow and performance. Each set of these pipes is fabricated by hand by a master machinist and welder, not stamped out by a machine, not sold at Dennis Kirk, not copied from another vendor. Yes we know they're expensive, but consult any expert in the field, consider the materials, the quality and time incorporated into each set, and you'll find they are an excellent value and reasonably priced. Never rusts, never need painting. Absolutely stunning looks, awesome performance, beautiful sound and the most exclusive pipes on the planet. Made in the USA. Click on the picture for more pictures and Dyno results.
Price: $0.00
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Vesrah VE-2004 Exhaust Pipe Gasket for RD400s
Compatible Models: RD400 76-79 *NOTE: although the product image is of a 10-pack, gaskets are sold individually.
Price: $2.50
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Yamaha RD350 RD400 Stage 1 Performance Kit with K&N Y-Boot Intake
Yamaha RD350 RD400 Stage 1 Performance Kit. Kit includes everything you need to transform your stock RD into a serious performance machine. Yamaha RD350 (all years) RD400 (1976-1978), 12+ lbs Lighter then Stock! 15+ HP Increase throughout the Rev Range, Bolt on Performance. Click add to cart and choose model.
Kit Includes:
DG Exhaust Expanision Chambers & Mounting Hardware
K&N Air filter with Y-boot intake
New High Performance Manifolds Kit (includes 2 high velocity reed stuffer type manifolds with boost port/crossover, cross over tube & clamps)
Jet Kit (includes 180-230 Mains, 2 each)
2 manifold Gaskets
2 Carburetor Bowl Gaskets
K&N Filter Care Kit (includes Cleaner Solvent and Filter Oil)
Free Decals
Free tech/installation support
Price: $525.00
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Yamaha RD350 RD400 Stage 1 Performance Kit with Uni-filter Intake
Yamaha RD350 RD400 Stage 1 Performance Kit. Kit includes everything you need to transform your stock RD into a serious performance machine. Yamaha RD350 (all years) RD400 (1976-1978), 12+ lbs Lighter then Stock! 15+ HP Increase throughout the Rev Range, Bolt on performance. Click add to card and choose model.
Kit Includes:
DG Exhaust Expanision Chambers & Mounting Hardware
Uni 2 Stage High Performance Air Filters x2
New High Performance Manifolds Kit (includes 2 high velocity reed stuffer type manifolds with boost port/crossover, cross over tube & clamps)
Jet Kit (includes 180-230 Mains, 2 each)
2 Manifold Gaskets
2 Carburetor Bowl Gaskets
Uni Foam Filter Care Kit (includes Foam Filter Oil, Foam Filter Cleaner)
Free Decals
Free tech/installation support
Price: $480.00
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