Exhaust Reducer, 4 Inch I.D. to 3-1/2 Inch O.D.
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Q & A
What's in the Box
Mild steel exhaust reducer to repair or build your own.
- 4-1/2” overall length
- Swedge for the reduction occurs midway at 2-1/4”
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Mild steel flanges can be welded to exhaust pipes, mufflers or header collectors so your exhaust system can easily be unbolted and removed. Flanges are 1/4" thick and feature the common 3-bolt mount pattern.
Collector gaskets available in several sizes.
Extension pipes are required on most 180° headers. Weld-on style with a 16-gauge thickness. These are 1018 hot rolled mild steel.