crowds74 wrote:Has anyone just replaced dump pipe and left standard exhaust on and done a tune? just wondering as i spoke to 2 tuners and both has said different things. 1 said i wont gain anything out of just doing dump pipe and the second said i will. has anyone does this?
PoidaGT wrote:by crowds74 » Mon Apr 23, 2012 10:59 am
Has anyone just replaced dump pipe and left standard exhaust on and done a tune? just wondering as i spoke to 2 tuners and both has said different things. 1 said i wont gain anything out of just doing dump pipe and the second said i will. has anyone does this?Cheers Tom
Hi Tom
I'm currently running just a Stainless 3 inch dump pipe with a standard OEM cat back system with a Dyno Tune (+ AVO top mounted intercooler and Panel Filter).
The filter is under $100 and doesn't affect the tune or power output. The Tune made a massive difference together with the dump pipe with a big jump in torque and power in the lower rev ranges. The car just drives so much better.
I recommend getting the dump pipe, 3 inch centre and Y pipe with a resonator built in and keep the standard mufflers fitted. Then go for the dyno tune.
This will keep your GT quiet with a slightly sportier note without being obnoxious and virtually no power loss compared to the full muffler systems.
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