This might be my first mod I need help deciding which would give me most gains for my money with a tuner included of course
any help would be nice. 
That's speculation though. There's no real way to know what a CAI can do if you don't tune for the increased MAF size. It's probably close to the truth though. If you were to get a CAI and ask a tuner to write a tune as close to stock as possible, it'd probably be pretty close.I saw one of other Nasty's post (i think) and he said that the Cai produce about 10rwhp and 15 rwhp from the tuner.
Yes.Is. There really a different in Cai or is it the tuner that makes the diffrence
Probably. I think you should expect 10-15 rwhp out of the tune and another 10-15 rwhp out of the CAI when paired together.I saw one of other Nasty's post (i think) and he said that the Cai produce about 10rwhp and 15 rwhp from the tuner.
When I said that I meant when they are paired together.That's speculation though. There's no real way to know what a CAI can do if you don't tune for the increased MAF size. It's probably close to the truth though. If you were to get a CAI and ask a tuner to write a tune as close to stock as possible, it'd probably be pretty close.
Axle backs wont free up any HP. The KR muflers and the Roush extreme catback system are very nice aggressive sounding exhausts. Ive had both the Roush on my o7 gt and the KR's on my 500 and they sound great.would axle back exhaust free some hp? Also, whats some deep aggressive sounding mufflers that would turn heads besides SLP LM?
No, it won't. I would run the Magnaflow Magnapacks. If you combine them with a O/R X Pipe it will be a even better sounding set-up.would axle back exhaust free some hp? Also, whats some deep aggressive sounding mufflers that would turn heads besides SLP LM?
This^No, it won't. I would run the Magnaflow Magnapacks. If you combine them with a O/R X Pipe it will be a even better sounding set-up.