Sorry didn't realize u said fx45. It still could be done with a few mods. But the muffler fits perfect just gotta extend the tipsU can get a exhaust from a g35 or 350z. U could have the muffler shop just extend the tips to make it flush with ur back bumper
Yea google that question and you'll c tons of threads about itIs there any difference in backpressure between a 35 vs 45 muffler?
I have fx35 exhaust on my fx45. Diff is pipe diameter . Don't quote me but I believe 35 is 2.5" diameter while 45 is 2.75". I purchased the 35 exhaust by mistake and did not notice until installer completed installation. I do not notice any HP differenceOn Google I found the fx45 lost power using a fx35 exhaust system. That's why I asked. Was hoping you would tell me it's fine. Lol wishful thinking.