backfire when A4 shifts?
Thread Starter
Teching In
Joined: Jul 2005
Posts: 48
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From: modesto california
backfire when A4 shifts? Just installed jethot LT on 02 SS with A4. running duals dumped at axle with 4 inch round by 18 magnaflow bullets on each side. (no crossover).... when hitting wot and A4 winding up, when tranny shifts I am getting what sounds like a backfire, or for lack of a better description a loud "cough" thru exhaust. installed new ngk iridiums with new msd 8.5 wires which all seem to be snug and installed correctly..... have never had headers, the car seems to perform well, but this backfiring sound for some reason does not sound "right".... any comments or is this just normal???
After installing my LTs and true duals, 18" bullet mufflers and an X pipe,
if I'm on the highway and keep the car in drive when I take my foot off the gas the car will sometimes backfire, and I'll hear a pretty loud pop.
pat
if I'm on the highway and keep the car in drive when I take my foot off the gas the car will sometimes backfire, and I'll hear a pretty loud pop.
pat
Thread Starter
Teching In
Joined: Jul 2005
Posts: 48
Likes: 0
From: modesto california
Originally Posted by z28pat
After installing my LTs and true duals, 18" bullet mufflers and an X pipe,
if I'm on the highway and keep the car in drive when I take my foot off the gas the car will sometimes backfire, and I'll hear a pretty loud pop.
pat
if I'm on the highway and keep the car in drive when I take my foot off the gas the car will sometimes backfire, and I'll hear a pretty loud pop.
pat
