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heymanwatchthis · 06-06-2014, 05:59 AM

Guys,

I could use some advice from those of you with the test pipes and TS exhaust. I installed the exhaust but felt there was too much drone, however I still had all 4 cats in my '01 S. I put the stock exhaust back on, but have since installed the 2nd cat delete (which is great).

I live in the mountains, which can really make drone in an exhaust stand out as hills in higher gears can put the car in the 'drone sweet spot'.

Question - does running the TS exhaust with the test pipes in place reduce drone? This is compared to TS exhaust with all 4 cats in place.

Thanks!

Gary

06-06-2014, 05:59 AM	#81
heymanwatchthis Registered User Join Date: Jul 2013 Location: Asheville, NC Posts: 102	Guys, I could use some advice from those of you with the test pipes and TS exhaust. I installed the exhaust but felt there was too much drone, however I still had all 4 cats in my '01 S. I put the stock exhaust back on, but have since installed the 2nd cat delete (which is great). I live in the mountains, which can really make drone in an exhaust stand out as hills in higher gears can put the car in the 'drone sweet spot'. Question - does running the TS exhaust with the test pipes in place reduce drone? This is compared to TS exhaust with all 4 cats in place. Thanks! Gary __________________ '01 986S: LN IMS, PedroBar, PSS9 coil-overs, underdrive pulley, 997 short shift, GT3 console delete, Crios muffler mod