Have been ordering aftermarket parts for my 2019 Fist since purchase. Low miles (3700) and only driven during non-winter/wet days. Purchase a ported and polished OEM exhaust manifold over the Winter. Have never removed one off any vehicle. Purchased from WHOOSH Motorsports. Has anyone installed one of these and what tips can I get from you folks on removing my stock manifold and installing the new one. I've added many WHOOSH products to mine....including Hot/Cold side intercooler plumbing, intercooler, and upper intake items. Have considered having a mechanic to install it but have an issue with trusting someone to do it properly. Any tips?