If you don't wanna mod your ECU, get the PLP or JoeZ Intake...if you think about it...the only reason why SRT really get that much hp is because of the RECU...
Look at Injen, RMM, K&N, AEM (Loose of hp for AEM), all of these are simular to the SRT but without ECU, they give out less hp than PLP's 8.7rwhp...so from my opinion get the PLP or JoeZ, they are abit quiet but I would prefer that, I had the A51 before and it gave me more power at high end but sometimes on low end it loses abit hp, not concerning me at all, still a nice intake.
I just want to put a after market intake system on. I know its not going to give me really anymore power but maybe a hoursepower or 2. I want to have a more growel, nice sound when i rev. I dont want one of them intake systems that take HP away.
srt wit good gains around 10hp plp w/o ecu around 7-8 but a bit louder den quiet but seriously u wont notice it much..its like barely
srt sounds supercharged with good gains 2, addin exhaust will lose low end tho but nice high end kicking in