I know this is none of my business, but I think some people here don't understand intellectual property laws and the protection(s) they may provide.
Firstly, a trademark--if issued--will grant you exclusive rights to a name, logo, design, color or combo of colors, etc. to be associated with a particular product or class of products.
In this case, the Bel Canto JGTC exhaust can be trademarked, but that protects the name of the product and possibly logos--but it does not protect the design of the exhaust itself.
That means if your trademark is issued, you can then sue someone for infringing on your trademark if they make another exhaust with a similar name.
In the mean time, while your trademark is pending, you don't have the exclusive rights to that name. Furthermore, you cannot go back and claim for damages incurred while the trademark was pending.
Even if the trademark is issued, all someone would have to do is change the name of their product to something else. Since this exhaust doesn't have any brand-prestige of say a product like the iPhone, I don't expect a trademark to offer much protection or to be potentially lucrative.
If you want to patent the design of the exhaust itself, you should seek a design patent. I don't know if you have anything novel here in terms of design--that would merit issuance of the patent--but that is what would protect you from replications.
And most importantly, even if the trademark was issued, cops are not going to go pounding on the infringer's door. LOL. They are not going to be arrested, fined, etc. by law enforcement officials. The owner of the intellectual property must himself go and seek compensation for damages, or seek a permanent injunction.
