[oarngemig]

I'm very happy with my Borla cat back, about 30% louder than stock but well worth it. I coupled it with a JoeZ intake pipe and Tom's filter. But I'm happiest with the result of installing an F sport rear stabilizer, handling has improved A LOT.

 

[oarngemig]

I was screwing around tonight... Not sure if I'm happy with the results.

1. The drone can get so loud at one point it will rattle some of the interiors.
2. I can no longer chirp the tires from 1st to 2nd?
3. I couldn't even pass a BMW 750 today from 60mph to 120? Both full throttle and I was simply maintaining my distance with him?

Starting to think I have not benefited performance wise... I might put it on a Dyno tomorrow if I can find one...

For my experience with Borla cat back/ JoeZ intake combo:
1. Drone is bearable. Fortunately not to the point of rattling the interior.
2. It's opposite in my case, the tire chirp is now longer.
3. I'm surprised at what you said about your experience with the 750.

Wish you could do a before and after scenario with the dyno.

How about the drone on the Joe Z exhaust, any comments?

 

[oarngemig]

From experience with my other rides, an Evo 7 and an STi, if you have exposed intakes which are not properly shielded from heat, you might as well go drop-in. That's why I got the TRD which I believe is made by Pipercross. I have Pipercross filters in my other cars. For my STi, Pipercorss designed an intake which draws air from the outside thru the right fender. Everything is covered/surrounded by carbon fibre and the temperature in the intake is ambient temp. Versus one with no shield/encasing, intake temp is at least double than ambient. Not ideal. Unless F, JoeZ or whoever makes a decent heat shield/ram air, I will stay with my drop-ins.