Thx!
Inside the cabin is a mixed bag. Easy off-the-line starts are refined and bold. Enough resonance to remind you what kind of engine the 4.7L really is. Get on it and hang on! It just takes off...screamin' all the way.
At highway speeds, can hardly hear it unless you pass someone.
I added an Alpine 300 Watt Mono Amp with an Alpine 12" Sub and enclosure to the stock low end system. With that cranked, can't hear much outside the vehicle anyway.
As far as I know, there's a marginal increase in HP. Feels like the engine breathes better, too. Can I feel the difference? Don't know...I haven't driven a 4Runner V8 without the Borlas. I had the same V8 in my 2001 Sequoia and that was pretty fast. Loose 1000lbs. with the same HPs and torgue and...see ya!
If you can get this upgrade, you won't be disappointed.