Our Straight Reducers reduce the size of the header outlet (collector) to fit your exhaust system.
Sold in pairs
- 3.0" Reducer for 3.0" to 2.5" tubing diameters
- 2.5" Reducer for 2.5" to 2.25" tubing diameters
Please Select the Correct Size for Your Application Below

Example of Use:
You have a 3.0" diameter collector on your header, but your exhaust piping or head pipes are 2.5" diameter. Use a collector reducer to merge the change in diameter from 3.0" to 2.5". The reducer would bolt to your headers, and then a qualified welder would fit and weld the head pipes to the reducer.
NOTES :
- Some crafters prefer to have a one-piece head pipe, with no weld connection. In that case you would have a muffler shop bend a head pipe for you with a flange and ring out of the desired material diameter to match your headers (i.e. 2.5" collector = 2.5" diameter head pipe). With this configuration you would not need the reducer.