Nitro RC engine exhaust powder coating and HPI nitro star G3.0 .18 install in Traxxas T-maxx 1.5 .15

I'm ready to install my freshend up HPI Nitro star 3.0 engine. When I pulled the old exhaust off I noticed the exhaust outlet was tiny. This would have created back pressure chocking off fresh air from coming into the carburetors. If you want to try powder coating look the machine below. Its pretty easy. You should also get a sandblast cabinet. You will also need an air compressor. Check my links below

Powder Coating Machine
https://www.amazon.com/gp/product/B07QPT4PK1/ref=as_li_tl?ie=UTF8&tag=fintechcomm0f-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B07QPT4PK1&linkId=f8f1ab890501f4a9107a67d116372144

Sandblast Cabinet https://www.amazon.com/gp/product/B0198UO2I8/ref=as_li_tl?ie=UTF8&tag=fintechcomm0f-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B0198UO2I8&linkId=6a436f848b22b17a4d78ad9dab9f9ca7

Air Compressor (Sandblasting requires allot of air, I would go below 20 gallon)
https://www.amazon.com/gp/product/B07Y4DQ38B/ref=as_li_tl?ie=UTF8&tag=fintechcomm0f-20&camp=1789&creative=9325&linkCode=as2&creativeASIN=B07Y4DQ38B&linkId=386d7be20f838f9ccc30f2ef6a9d8e7f